@article{Sapar1959,
  author = {Arved Sapar},
  title = {Lunoidid -- esimesed kunstlikud taevakehad},
  journal = {Tartu Tähetorni Kalender 1959. aastaks},
  year = {1959},
  pages = {41--48}
}

@article{Sapar1959a,
  author = {Arved Sapar},
  title = {Mõningatest lunoidi liikumise probleemidest (О некоторых проблемах движениа искусственного спутника Земли, On Some Problems of Motion of an Artificial Earth Satellite)},
  journal = {Loodus ja Matemaatika},
  year = {1959},
  volume = {1},
  pages = {21--43}
}

@article{Sapar1960,
  author = {Arved Sapar},
  title = {К нейтринной теории элементарных частиц и полей (On the Neutrino Theory of Elementary Particles and Fields)},
  journal = {Tartu Astr. Obs. Publ.},
  year = {1960},
  volume = {33},
  pages = {221--280}
}

@article{Sapar1961,
  author = {Arved Sapar},
  title = {О связи космологии с микрофизикой (On the Relationship between Cosmology and Microphysics)},
  journal = {Tartu Astr. Obs. Publ.},
  year = {1961},
  volume = {33},
  pages = {425--444}
}

@conference{Sapar1961a,
  author = {Arved Sapar},
  title = {О связи космологии с микрофизикой},
  booktitle = {Тезисы и программа 1-й Советской гравитационной конференции},
  publisher = {МГУ},
  year = {1961},
  pages = {108--109}
}

@article{Kuzmin1963,
  author = {Grigori Kuzmin and Sapar, Arved and Leo Sorgsepp},
  title = {Märkmeid kosmogoonia--alaselt seminarilt Tartus ja Tõraveres},
  journal = {Tartu Tähetorni Kalender 1963. aastaks},
  year = {1963},
  pages = {43--58}
}

@article{Sapar1963,
  author = {Arved Sapar},
  title = {Üldistatud loogikatest},
  journal = {Loodus ja Matemaatika},
  year = {1963},
  volume = {3},
  pages = {36--46}
}

@article{Sapar1963a,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Об излучении звезд в вакуумном ултрафиолете (On the Vacuum Ultraviolet Radiation of the Stars)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1963},
  volume = {7},
  pages = {1--20}
}

@article{Sapar1964,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Электрический дипольный момент электрона и двухфотонное излучение туманностей (The Electronic Electric Dipole Moment and the Two-Quantum Emission of Nebulae)},
  journal = {Tartu Astr. Obs. Publ.},
  year = {1964},
  volume = {34},
  pages = {54--61}
}

@article{Sapar1964a,
  author = {Arved Sapar},
  title = {Теория некоторых наблюдаемых величин и эффектов в космологии однородной изотропной Метагалактики (Theory of Some Observable Quantities in the Cosmology of Uniform Metagalaxy)},
  journal = {Tartu Astr. Obs. Publ.},
  year = {1964},
  volume = {34},
  pages = {223--318}
}

@article{Sapar1964b,
  author = {Arved Sapar},
  title = {Вопрос о тензоре энергии--импулса гравитационного поля и тензор суперэнергии (On the Energy-Momentum Tensor of the Gravitational Field and the Superenergy Tensor)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1964},
  volume = {34},
  pages = {319--358}
}

@article{Sapar1965,
  author = {Arved Sapar},
  title = {Теория некоторых наблюдаемых величин и эффектов в космологии однородной изотропной Метагалактики II (Theory of Some Observable Quantities in the Cosmology of Uniform Metagalaxy II)},
  journal = {Tartu Astr. Obs. Teated},
  year = {1965},
  volume = {13},
  pages = {1--105}
}

@article{Sapar1965a,
  author = {Arved Sapar},
  title = {Об одном семействе космологических моделей и его связи с наблюдениями},
  journal = {Проблемы гравитации, Тбилиси 1965},
  year = {1965},
  pages = {247--249}
}

@phdthesis{Sapar1965b,
  author = {Arved Sapar},
  title = {Теория некоторых наблюдаемых величин и эффектов в космологии однородной изотропной Метагалактики},
  school = {Tartu Riiklik Ülikool},
  year = {1965}
}

@booklet{Sapar1965c,
  author = {Arved Sapar},
  title = {Теория некоторых наблюдаемых величин и эффектов в космологии однородной изотропной Метагалактики, Автореферат},
  year = {1965},
  note = {12 стр.}
}

@article{Sapar1965d,
  author = {Arved Sapar},
  title = {Hiiglaplahvatused kosmoses ja nendega kaasnevad nähtused},
  journal = {Tartu Tähetorni Kalender 1966. aastaks},
  year = {1965},
  pages = {38--59}
}

@article{Kruusmaa1966,
  author = {Aime Kruusmaa and Arved Sapar},
  title = {О методике расчета моделей атмосфер и непрерывного спектра звезд ранних классов (A Method for Calculating Model Stellar Atmospheres and Continuous Spectrum of Early-Type Stars)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1966},
  volume = {35},
  pages = {82--108}
}

@article{Sapar1966,
  author = {Arved Sapar},
  title = {К теории наблюдаемых космологических эффектов (On the Observable Cosmological Effects)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1966},
  volume = {35},
  pages = {368--376}
}

@article{Sapar1966a,
  author = {Arved Sapar and Tõnu Viik},
  title = {Uut evolutsioonist kosmoses ja kosmose evolutsioonist},
  journal = {Tartu Tähetorni Kalender 1967. aastaks},
  year = {1966},
  pages = {51--63}
}

@conference{Sapar1967,
  author = {Arved Sapar},
  title = {Universumi ehitusest},
  booktitle = {VIII Eesti loodusuurijate päeva ettekannete teesid},
  year = {1967},
  pages = {100}
}

@incollection{Sapar1968,
  author = {Arved Sapar},
  title = {Uut kvasaritest ja kosmoloogiast},
  booktitle = {Täppisteadused ja haridus},
  year = {1968},
  pages = {15--16}
}

@article{Sapar1968a,
  author = {Arved Sapar and Tõnu Viik},
  title = {К теории протяженных звездных атмосфер (On the theory of Extended Stellar Atmospheres)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1968},
  volume = {36},
  pages = {120--143}
}

@article{Sapar1968b,
  author = {Arved Sapar},
  title = {Связь уравнения переноса с уравнениями классической и квантовой электродинамики (Connection of the Equation of Radiation Transfer with the Classical and Quantum Electrodynamics)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1968},
  volume = {36},
  pages = {162--182}
}

@article{Sapar1968c,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Приближенная теория моделей звездных атмосфер (The approximate Theory of Model Stellar Atmospheres)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1968},
  volume = {19},
  pages = {3--14}
}

@article{Sapar1968d,
  author = {Arved Sapar and Tõnu Viik},
  title = {Определение распределений температуры и давления в протяженных звездных атмосферах (Determination of Temperature and Pressure Distributions in the Extended Stellar Atmospheres)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1968},
  volume = {19},
  pages = {15--24}
}

@article{Sapar1968e,
  author = {Arved Sapar},
  title = {Приближенная аналитическая зависимость давления от температуры в звездных атмосферах (Approximate Analytical Pressure--Temperature Dependence in a Stellar Atmosphere)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1968},
  volume = {19},
  pages = {35--46}
}

@article{Sapar1968f,
  author = {Arved Sapar},
  title = {Конвекция в звездных атмосферах (Convection in Stellar Atmospheres)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1968},
  volume = {19},
  pages = {47--57}
}

@article{Sapar1968g,
  author = {Arved Sapar},
  title = {О процессах рассеяния в уравнении переноса излучения (On the Scattering Processes in the Equation of Radiative Transfer)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1968},
  volume = {19},
  pages = {59--70}
}

@incollection{Sapar1969,
  author = {Arved Sapar and Grigori Kuzmin},
  title = {Физика звезд и туманностей},
  booktitle = {Астрономия и геодезия в Эстонской ССР},
  year = {1969},
  pages = {30--51}
}

@incollection{Sapar1969a,
  author = {Arved Sapar},
  title = {Космология и релятивистская астрофизика},
  booktitle = {Астрономия и геодезия в Эстонской ССР},
  year = {1969},
  pages = {77--91}
}

@article{Sapar1970,
  author = {Arved Sapar and Aime Kruusmaa},
  title = {Методы определения уточненного распределения температуры в несерых звездных атмосферах (Methods to Calculate the Improved Temperature Distribution in Non--Gray Stellar Atmospheres)},
  journal = {Tartu Astrofüüss. Obs. Publ.},
  year = {1970},
  volume = {38},
  pages = {3--28}
}

@article{Sapar1970a,
  author = {Arved Sapar and Aime Kruusmaa},
  title = {О методах определения функции источника и эддингтоновских моментов интенсивности (On the Methods to Calculate the Source Function and Eddington Moments)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1970},
  volume = {38},
  pages = {29--45}
}

@article{Sapar1970b,
  author = {Arved Sapar},
  title = {Основные зависимости в космологических моделях с веществом и излучением},
  journal = {Астронимический Журнал},
  year = {1970},
  volume = {47},
  pages = {503--508}
}

@article{Sapar1970c,
  author = {Arved Sapar},
  title = {Suure paugu kosmoloogia I},
  journal = {Horisont},
  year = {1970},
  volume = {12},
  pages = {1--10}
}

@article{Sapar1971,
  author = {Arved Sapar},
  title = {Suure paugu kosmoloogia II},
  journal = {Horisont},
  year = {1971},
  volume = {1},
  pages = {1--10}
}

@article{Sapar1971a,
  author = {Arved Sapar},
  title = {Suure paugu kosmoloogia III},
  journal = {Horisont},
  year = {1971},
  volume = {2},
  pages = {29--37}
}

@incollection{Sapar1971b,
  author = {Arved Sapar},
  title = {Tähtede evolutsioon ja selle mõningad vaatluslikud aspektid (Stellar Evolution and Some its Observational Aspects)},
  booktitle = {Tähed: teooria ja tegelikkus},
  year = {1971},
  pages = {18--38}
}

@incollection{Rosental1972,
  author = {Rosental, A. and Arved Sapar},
  title = {Об условиях наблюдения безловушечного квадратичного закона тока, ограниченного объемным зарядом, в сульфиде кадмия},
  booktitle = {Проблемы физики соединений A$^rm II$B$^rm VI$},
  year = {1972},
  volume = {2},
  pages = {368--372}
}

@article{Sapar1973,
  author = {Arved Sapar and Rosental, A.},
  title = {A General Method for Computing One--Carrier Injection and Extraction Current--Voltage Characteristics in Solids (Общий метод для расчета вольт--амперных характеристик тока монополярной инжекции и экстракции в твердых телах)},
  journal = {ENSV TA Toimetised, Füüsika--Matemaatika},
  year = {1973},
  volume = {22},
  number = {3},
  pages = {276--285}
}

@article{Sapar1973a,
  author = {Arved Sapar},
  title = {Заметки к программе отождествления звезд по наблюдениям с нестабилизированного ИСЗ с магнитометром на борту (Notes on Program of Identification of Stars from Observations Made by the Use of Non-Stabilized Satellite with Magnetometer on Board)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1973},
  volume = {42},
  pages = {21--26}
}

@article{Sapar1973b,
  author = {Arved Sapar},
  title = {Simple Method to Solve Equation of Radiative Transfer (Простой метод решения уравнения переноса излучения)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {40},
  pages = {113--118}
}

@article{Sapar1973c,
  author = {Arved Sapar},
  title = {On Methods for Solving Hartree--Fock Equations (О методах решения уравнений Хартри--Фока)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {40},
  pages = {119--142}
}

@article{Sapar1973d,
  author = {Arved Sapar and Ilse Kuusik},
  title = {On Line Profile Function for Hydrogenic Atoms (О функции профиля для водородоподобных атомов)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {40},
  pages = {143--161}
}

@article{Sapar1973e,
  author = {Arved Sapar},
  title = {New Flux Iteration Algorithms for Model Stellar Atmospheres (Новые алгоритмы итерации потока для моделей звездных атмосфер)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {40},
  pages = {259--272}
}

@article{Sapar1973f,
  author = {Arved Sapar},
  title = {Frequency Dependent Damping Constant of Quasielastic Electron Impacts for Hydrogen (Зависящий от частоты коэффициент затухания квазиупругих электронных столкновений для водорода)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {41},
  pages = {113--118}
}

@article{Sapar1973g,
  author = {Arved Sapar},
  title = {Вращение составных гироскопических ИСЗ (Rotation of Composite Gyroscopic Satellites)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {41},
  pages = {119--131}
}

@article{Kuusik1973,
  author = {Ilse Kuusik and Arved Sapar},
  title = {Inelastic Electron Impact Transitions and Thermal Transition Rates for Hydrogen (Переходы вследствие неупругих электронных столкновений и числа тепловых переходов для водорода)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1973},
  volume = {41},
  pages = {306--321}
}

@article{Sapar1974,
  author = {Arved Sapar and Valeri Maljuto},
  title = {Уточнение некоторых параметров фотометрической системы Джонсона (Improvement of Some Parameters of Johnson Photometric System)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1974},
  volume = {42},
  pages = {71--93}
}

@article{Rosental1974,
  author = {Rosental, A. and Arved Sapar},
  title = {Diffusion Effects in One-Carrier Space-Charge-Limited Currents with Trapping},
  journal = {Jour. Appl. Phys.},
  year = {1974},
  volume = {45},
  pages = {2787--2788}
}

@article{Sapar1974a,
  author = {Arved Sapar and Ilse Kuusik and Liia Einasto},
  title = {Thermal damping Constants and Their Constituents for Hydrogen (Тепловые постоянные затухания и их составляющие для водорода)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1974},
  volume = {42},
  pages = {223--271}
}

@article{Sapar1974b,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Wide Energy Range Approximation Formula for Hydrogen Gaunt Factor (Аппроксимационная формула фактора Гаунта водорода для широкого диапазона энергий)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1974},
  volume = {42},
  pages = {272--280}
}

@article{Sapar1975,
  author = {Arved Sapar and Undo Uus},
  title = {Rahvusvaheline Astronoomia Liidu Erakorraline Peaassamblee Poolas},
  journal = {Tartu Tähetorni Kalender 1975. aastaks},
  year = {1975},
  pages = {30--41}
}

@article{Sapar1975a,
  author = {Arved Sapar and Feklistova, T.},
  title = {Исследование рекомбинационных спектров легких ионов (Investigation of Recombination Spectra of Light Ions)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1975},
  volume = {43},
  pages = {262--289}
}

@conference{Nikitin1975,
  author = {Nikitin, A. A. and Kholtygin, A. F. and Arved Sapar and Feklistova, T.},
  title = {On the Structure of Astrophysical Spectra of CIII, NIV and OV},
  booktitle = {Atomic Spectroscopy Symposium 1975},
  year = {1975}
}

@inproceedings{Sapar1975b,
  author = {Arved Sapar},
  title = {Maailmankaikkeuden kehityksen jaksotaminen},
  booktitle = {Suomalais--Neuvostoliittolainen tähtitieteen symposio},
  year = {1975},
  pages = {18}
}

@article{Sapar1976,
  author = {Arved Sapar},
  title = {Quantum Phenomena in the Early Universe (Квантовые явления в ранней Вселенной)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1976},
  volume = {44},
  pages = {21--46}
}

@article{Nikitin1976,
  author = {Nikitin, A. A. and Kholtygin, A. F. and Arved Sapar and Feklistova, T.},
  title = {О некоторых структурных характеристиках астрофизических спектров CII, NIV и OV (On Some Structural Features of Astrophysical Spectra of CIII, NII and OV)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1976},
  volume = {44},
  pages = {106--112}
}

@article{Sapar1976a,
  author = {Arved Sapar},
  title = {A Method for Calculating the Light Curves of Close Binaries (Метод расчета кривых блеска тесных двойных свезд)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1976},
  volume = {44},
  pages = {124--135}
}

@article{Sapar1976b,
  author = {Arved Sapar},
  title = {Взаимодействие излучения и вещества в звездных атмосферах},
  journal = {Успехи физических наук},
  year = {1976},
  volume = {120},
  pages = {499}
}

@article{Sapar1977,
  author = {Arved Sapar},
  title = {Uut kosmoloogilistest paradoksidest},
  journal = {Tartu Tähetorni Kalender 1977. aastaks},
  year = {1977},
  pages = {48--62}
}

@article{Sapar1977a,
  author = {Arved Sapar},
  title = {Evidence for the Fundamental Role of Planck Units in Cosmology (Указание на фундаментальную роль планковских единиц в космологии)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1977},
  volume = {45},
  pages = {204--210}
}

@article{Sapar1977b,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Rational Visualized Representation and Analytical Fit Formulae to Emergent Continuous Stellar Fluxes (Рациональное показательное представление и аналитические формулы аппроксимации для выходящего непрерывного потока излучения звезд)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1977},
  volume = {45},
  pages = {211--256}
}

@article{Nikitin1977,
  author = {Nikitin, A. A. and Arved Sapar and Feklistova, T. and Kholtygin, A. F},
  title = {Рекомбинационный спектр иона CIII (Recombination Spectrum of Ion CIII)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1977},
  volume = {45},
  pages = {257--274}
}

@article{Sapar1977c,
  author = {Arved Sapar},
  title = {A Fast Method for Finding the Resolvent of the Equation of Radiative Transfer by the Use of Neumann Series (Метод быстрого определения резолвенты управления переноса по ряду Неймана)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1977},
  volume = {45},
  pages = {275--283}
}

@conference{Sapar1977d,
  author = {Arved Sapar},
  title = {Комиссия 36 "Теория збездных атмосфер"},
  booktitle = {XVI Генеральная Ассамблея Международного Астрономического Союза},
  year = {1977},
  pages = {149--151}
}

@article{Sapar1978g,
  author = {Arved Sapar},
  title = {Transfer Equation for the Density Matrix of Phase Space Cell Occupation Number States (Уравнение переноса для матрицы плотности состояний чисел заполнения ячеек фазового пространства)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {17--32}
}

@article{Sapar1978,
  author = {Arved Sapar},
  title = {Revised Particles Interaction Terms in Thermodynamical Equilibrium (Уточненные члены взаимодействия частиц при термодинамическом равновесии)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {33--42}
}

@article{Sapar1978a,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Mean Interstellar Extinction Curve from Space Observations (Средняя кривая межзвездной экстинкции по космическим маблюдениям)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {71--84}
}

@article{Kuusik1978,
  author = {Ilse Kuusik and Arved Sapar},
  title = {On the Emergent Continuous Spectrum Fluxes of Blanketed Early-Type Model Stellar Atmospheres (О выходящем непрерывном потоке излучения бланктированных моделей атмосферы звезд раннего типа)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {85--99}
}

@article{Sapar1978b,
  author = {Arved Sapar and Lilli Sapar},
  title = {Formulae for Structure of Model Stellar Atmospheres of Hot Stars (Формулы для структуры моделей атмосфер горячих звезд)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {130--151}
}

@article{Sapar1978c,
  author = {Arved Sapar and Mare Ruusalepp},
  title = {Observables of Rotationally Distorted Stars (Наблюдаемые эффекты у быстро вращающихся звезд)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {152--175}
}

@article{Sapar1978d,
  author = {Arved Sapar},
  title = {Standard Scattering Stellar Atmospheres and Spectral Lines (Стандартные рассеивающие звездные атмосферы и спектральные линии)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {221--250}
}

@article{Sapar1978e,
  author = {Arved Sapar},
  title = {Human Eye as a Photometric System and Visual Photometry of Stars (Глаз человека как фотометрическая система и визуальная фотометрия звезд)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1978},
  volume = {46},
  pages = {263--277}
}

@article{Sapar1978f,
  author = {Arved Sapar and Heinlo, A.},
  title = {Standard Approximations to Line Formation in Stellar Spectra (Стандартные приближения к образованию линий в спектрах звезд)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1978},
  volume = {56},
  pages = {55--77},
  note = {Перенос излучения в несером слое и образование линий поглощения (Radiative transfer in a slab and formation of absorbtion lines)}
}

@article{Sapar1979,
  author = {Arved Sapar and Ilse Kuusik},
  title = {Results of Stellar Photometry in Physical Terms (Резултаты звездной фотометрии в физических терминах)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1979},
  volume = {47},
  pages = {73--92}
}

@article{Ojaste1979,
  author = {Ojaste, J. and Arved Sapar},
  title = {Statistics of Photons and its Recording (Статистика фотонов и фотоотсчетов)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1979},
  volume = {47},
  pages = {93--102}
}

@article{Kuusik1979,
  author = {Ilse Kuusik and Arved Sapar},
  title = {Mean Interstellar Extinction Curve in the Region $lambda 1440--1050 Å (Средняя кривая межзвездной экстинкции в интервале длин волн $lambda 1440--1050 },
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1979},
  volume = {47},
  pages = {212--221}
}

@conference{Nikitin1979,
  author = {Nikitin, A. A. and Kholtygin, A. F. and Arved Sapar and Feklistova, T.},
  title = {On Peculiarities of Recombinational Spectra of Carbon and Nitrogen Ions in Planetary Nebulae},
  booktitle = {Symposium 'Atomic Spectroscopy--1979'},
  year = {1979}
}

@article{Sapar1980,
  author = {Arved Sapar},
  title = {О некоторых закономерностях образования спектральных линий в звездных атмосферах},
  journal = {Труды Казанской Городской Астрономической Обсерватории},
  year = {1980},
  volume = {46},
  pages = {74--76}
}

@article{Sapar1980a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Формулы для температуры и электронной плотности в звездных атмосферах},
  journal = {Труды Казанской Городской Астрономической Обсерватории},
  year = {1980},
  volume = {46},
  pages = {76--80}
}

@inproceedings{Nikitin1980,
  author = {Nikitin, A. A. and Bakhtiyarov, A. S. and Arved Sapa and Feklistova, T.H.},
  title = {On Formation of Technetium Lines in the Spectra of Variable Stars},
  booktitle = {Proc. of the Fifth European Regional Meeting 'Variability in Stars and Galaxies'},
  year = {1980}
}

@article{Luud1980,
  author = {Luud, L. and Arved Sapar},
  title = {The Ultraviolet Spectrum of P Cygni (Ултрафиолетофый спектр P Лебедя)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1980},
  volume = {60},
  pages = {3--21}
}

@article{Sapar1981,
  author = {Arved Sapar},
  title = {Astronoomiauniooni Peaassambleest olümpialinnas ning astronoomia arengutendentsidest},
  journal = {Tartu Tähetorni Kalender 1981. aastaks},
  year = {1981},
  pages = {45--50}
}

@article{Pustylnik1981,
  author = {Izold Pustylnik and Arved Sapar},
  title = {Evidence on High Rate Mass Loss in Eclipsing Variable VW Cep from Ultraviolet Spectra (Свидетелства быстрой потери массы у затменной переменной VW Cep по данным из ултрафиолетовых спектров)},
  journal = {Preprint A-39 Acad. Sci. Estonian SSR},
  year = {1981},
  pages = {3--20}
}

@incollection{Kipper1981,
  author = {Kipper, T. and Arved Sapar and Einasto, J.},
  title = {Астрофизика},
  booktitle = {Академия наук ЭССР в 1973--1979 годах},
  year = {1981},
  pages = {47--58}
}

@article{Nikitin1981,
  author = {Nikitin, A. A. and Arved Sapar and Kholtygin, A. F. and Feklistova, T. H.},
  title = {Эмиссионные спектры и распространенность ионов азота и углерода в планетарных туманностях},
  journal = {Астрономический Журнал},
  year = {1981},
  volume = {58},
  pages = {101--105}
}

@article{Sapar1981a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Simple Algorithms to Compute the Absorption Line Profiles (Простые алгоритмы для вычисления профилей линий поглощения)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1981},
  volume = {48},
  pages = {41--62}
}

@article{Sapar1981b,
  author = {Arved Sapar},
  title = {Космологический нейтринный фон как возможный источник энергии в небесных телах (Cosmological Neutrino Background as a Possible Source of Energy in Celestial Bodies)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1981},
  volume = {48},
  pages = {271--279}
}

@conference{Sapar1982a,
  author = {Arved Sapar},
  title = {Some aspects of Astronomy versus Sport},
  booktitle = {Be Stars},
  year = {1982},
  pages = {xv}
}

@article{Sapar1982,
  author = {Arved Sapar},
  title = {От редакции: Памяти Ильзе Куузик (Editorial: In Memory of Ilse Kuusik)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1982},
  volume = {49},
  pages = {7--13}
}

@article{Nikitin1982,
  author = {Nikitin, A. A. and Arved Sapar and Feklistova, T. H. and Kholtygin, A. F.},
  title = {О некоторых характеристиках эмиссионных спектров ионов углерода и азота в планетарных туманностях (On Some Characteristics of Emission Spectra of Carbon and Nitrogen Ions in Planetary Nebulae)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1982},
  volume = {49},
  pages = {40--54}
}

@article{Bakhtiyarov1982,
  author = {Bakhtiyarov, A. S. and Nikitin, A. A. and Arved Sapar and Feklistova, T. H.},
  title = {О появлении линий технеция в спектрах нестационарных звезд (On Formation of Technetium Lines in the Spectra of Variable Stars)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1982},
  volume = {49},
  pages = {55--61}
}

@article{Sapar1983,
  author = {Arved Sapar},
  title = {Investigation of Be Stars in USSR during 1981--1983},
  journal = {Be Star Newsletter},
  year = {1983},
  volume = {8},
  pages = {21--23}
}

@conference{Bogdanovich1983,
  author = {Bogdanovich, P. O. and Rudzikas, Z. B. and Feklistova, T. H. and Kholtygin, A.F. and Nikitin, A.A. and Arved Sapar},
  title = {Recombination spectra of Planetary Nebulae},
  booktitle = {Planetary Nebulae. IAU Symp. No. 103},
  year = {1983},
  pages = {514--516}
}

@conference{Nikitin1983,
  author = {Nikitin, A. A. and Arved Sapar and Feklistova, T. H. and Kholtygin A. F.},
  title = {On the spectral classification of WN Stars. The MK Processes and stellar classification},
  booktitle = {Proceedings of the workshop in honor of W. Morgan and P. C. Keenan},
  year = {1983}
}

@article{Sapar1983a,
  author = {Arved Sapar},
  title = {Rahvusvahelise Astronoomiauniooni XVIII Peaassamblee Patrases},
  journal = {Tartu Tähetorni Kalender 1984. aastaks},
  year = {1983},
  pages = {51--62}
}

@article{Sapar1983b,
  author = {Arved Sapar},
  title = {Ilse Kuusiku mälestuseks},
  journal = {Tartu Tähetorni Kalender 1984. aastaks},
  year = {1983},
  pages = {71--75}
}

@article{Sapar1984,
  author = {Arved Sapar},
  title = {General Data on IUE Observations of O--F Stars within ES2AS Program (Общие данные об IUE наблюдениях O--F звезд по программе ES2AS)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1984},
  volume = {71},
  pages = {1--16}
}

@article{Sapar1984a,
  author = {Arved Sapar and Lilli Sapar},
  title = {IUE data Reduction Algoritms for ESHI files (Алгоритмы и программы обработки данных IUE с ESHI файлов)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1984},
  volume = {71},
  pages = {17--57}
}

@article{Sapar1984b,
  author = {Arved Sapar and Lilli Sapar},
  title = {Low Dispersion IUE Data Reduction Program from ESSR Files (Программа обработки низкодисперсионных данных IUE с ESSR файлов)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1984},
  volume = {71},
  pages = {58--66}
}

@article{Ruusalepp1984,
  author = {Mare Ruusalepp and Arved Sapar and Lilli Sapar},
  title = {Determination of the Velocity and Inclination Angle of Rotating Stars from IUE Data (Определение скорости вращения и угла наклона вращающихся звезд по наблюдениям IUE)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1984},
  volume = {50},
  pages = {152--169}
}

@article{Nikitin1984,
  author = {Nikitin, A. A. and Arved Sapar and Feklistova, T. H. and Kholtygin, A. F.},
  title = {Расчет интенсивности линий рекомбинационного спектра иона CIII (Calculation of Recombination Line Intensities for CIII Ions)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1984},
  volume = {50},
  pages = {81--100}
}

@book{Sapar1985,
  author = {Arved Sapar},
  title = {Вывод обобщенных уравнений кинетики фотонов и частиц и их применение в астрофизике (Derivation of the Generalized Equations of Kinetics for Photons and Particles and Their Use in Astrophysics)},
  publisher = {Valgus},
  year = {1985},
  pages = {1--200}
}

@article{Sapar1985a,
  author = {Arved Sapar and Feklistova, T},
  title = {Рецензия о книге: Никитин А. А., Рудзикас З. Б., Основы теории спектров атомов и ионов, Москва, 1983},
  journal = {Астрономический Журнал},
  year = {1985},
  volume = {62},
  pages = {614--615}
}

@article{Harvig1985,
  author = {Harvig, V and Arved Sapar and Lilli Sapar},
  title = {Ultraviolet Spectrum of the Close Binary System AO Cassiopeiae Obtained with the IUE (Ультрафиолетовый спектр тесной двойной системы AO Cassiopeiae, полученный с помощью IUE)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1985},
  volume = {74},
  pages = {33--48}
}

@article{Nugis1985,
  author = {Tiit Nugis and Arved Sapar},
  title = {High-Resolution IUE Spectrum of WN6 star HD192163: the FeV and FeVI Dominated Emission-line Spectrum at $lambda le 1720$ Å (Высокодисперсионный IUE--спектр WN6 звезды HD192163: доминирующий эмиссионный спектр FeV и FeVI в области $lambda le 1720$ },
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1985},
  volume = {80},
  pages = {3--24}
}

@article{Nugis1985a,
  author = {Tiit Nugis and Arved Sapar},
  title = {Ултрафиолетовый спектр звезды типа Волфа--Райэ HD192163: отождествление большого количества блендированных эмиссионных линий FeV и FeVI},
  journal = {Письма в Астрономический Журнал},
  year = {1985},
  volume = {11},
  pages = {455--457}
}

@article{Sapar1985b,
  author = {Arved Sapar and Undo Uus},
  title = {Akadeemik Aksel Kipper (1907--1984)},
  journal = {Tartu Tähetorni Kalender 1986. aastaks},
  year = {1985},
  pages = {29--38}
}

@article{Sapar1986,
  author = {Arved Sapar},
  title = {Памяти Акселя Киппера (Editorial: In Memory of Professor Aksel Kipper)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1986},
  volume = {51},
  pages = {3--12}
}

@article{Nikitin1986,
  author = {Nikitin, A. A. and Arved Sapar and Feklistova, T. H. and Kholtygin, A. F.},
  title = {О спектральной классификазии звезд WN (On the Spectral Classification of WN Stars)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1986},
  volume = {51},
  pages = {63--75}
}

@booklet{Tatarenko,
  author = {Tatarenko, E. M. and Arved Sapar},
  title = {Interstellar Matter Towards 29 CMa},
  year = {1986},
  note = {pages 1--26}
}

@incollection{Kipper1986,
  author = {Kipper, T. and Luud, L. and Arved Sapar},
  title = {Tähtede füüsika},
  booktitle = {Eesti NSV Teaduste Akadeemia 1980--1985},
  publisher = {Valgus},
  year = {1986},
  pages = {56--64}
}

@incollection{Kipper1986a,
  author = {Kipper, T. and Luud L. and Arved Sapar},
  title = {Физика звезд},
  booktitle = {Академия наук Эстонской ССР 1980--1985},
  publisher = {Valgus},
  year = {1986},
  pages = {59--68}
}

@article{Sapar1987,
  author = {Arved Sapar},
  title = {Роль звуковых и плазменных волн при генерации звездного ветра (Role of Sound and Plasma Waves in Stellar Wind Generation)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1987},
  volume = {52},
  pages = {13--32}
}

@incollection{Sapar1987a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Автоматическая идентификация спектральных линий по спектрам IUE (The Automatic Identification of Spectral Lines from the IUE Spectra)},
  booktitle = {Наблюдения и интерпретация звездных спектров},
  year = {1987},
  pages = {13--26}
}

@book{Nikitin1988,
  author = {Nikitin, A. A. and Rudzikas, Z. B. and Arved Sapar and Feklistova, T. H. and Kholtygin, A. F.},
  title = {Спектры планетарных туманностей (Spectra of Planetary Nebulae)},
  publisher = {Valgus},
  year = {1988},
  pages = {3--120}
}

@article{Sapar1988,
  author = {Arved Sapar},
  title = {Теория возникновения звездного ветра (Theory of the Origin of Stellar Wind)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1988},
  volume = {89},
  pages = {208--221}
}

@incollection{Sapar1988a,
  author = {Arved Sapar},
  title = {Foundations of Stellar Wind Theory},
  booktitle = {Proceedings of the Sixth Soviet--Finnish Astronomical Meeting},
  year = {1988}
}

@phdthesis{Sapar1988b,
  author = {Arved Sapar},
  title = {Неравновесная статистическая термодинамика звездных атмосфер и изучение спектроф горячих звезд},
  school = {ЛГУ},
  year = {1988},
  note = {Диссертация в форме научного доклада}
}

@incollection{Palgi1988,
  author = {Palgi, L. and Arved Sapar},
  title = {Järelsõona eestikeelsele tõlkele},
  booktitle = {Weinberg S. Esimesed kolm minutit},
  publisher = {Valgus},
  year = {1988},
  pages = {128--140}
}

@article{Sapar1989,
  author = {Arved Sapar and Lilli Sapar},
  title = {Computation of Model Stellar Absorption Line Catalogues (Расчет каталогов линий поглощения по моделям отмосфер звезд)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1989},
  volume = {98},
  pages = {3--53}
}

@article{Sapar1989a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Spectral Line Recognition and Identification by Computers (Распознавание и отождествление спектральных линий с помощю ЭВМ)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1989},
  volume = {98},
  pages = {54--62}
}

@article{Sapar1989b,
  author = {Lilli Sapar and Arved Sapar},
  title = {The Ultraviolet IUE Spectrum of $ Orionis (Ултрафиолетофый спектр звезды $ Orionis)},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1989},
  volume = {99},
  pages = {3--86}
}

@article{Sapar1990,
  author = {Arved Sapar and Lilli Sapar},
  title = {Formation of Spectral Line Profiles in Stellar Wind (Образование профилей спектральных линий в звездном ветре)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1990},
  volume = {53},
  pages = {52--61}
}

@article{Sapar1990c,
  author = {Lilli Sapar and Arved Sapar},
  title = {Ultraviolet Spectrum of $ Cyg},
  journal = {Tartu Astrofüüs. Obs. Teated},
  year = {1990},
  volume = {108},
  pages = {3--95}
}

@article{Sapar1990f,
  author = {Arved Sapar},
  title = {A Detailed Kinetic Approach to NLTE Phenomena in Stellar Atmospheres},
  journal = {Uppsala Astr. Obs. Rep.},
  year = {1990},
  volume = {52},
  pages = {72}
}

@article{Sapar1990d,
  author = {Lilli Sapar and Arved Sapar},
  title = {Spectral Analysis of Hot Supergiant Stars from IUE Data},
  journal = {Uppsala Astr. Obs. Rep.},
  year = {1990},
  volume = {52},
  pages = {73}
}

@incollection{Sapar1990a,
  author = {Arved Sapar},
  title = {A Detailed Kinetic Approach to NLTE Phenomena in Stellar Atmospheres},
  booktitle = {Nordic--Baltic Astronomy Meeting},
  year = {1990},
  pages = {287--290}
}

@incollection{Sapar1990e,
  author = {Lilli Sapar and Arved Sapar},
  title = {Spectral Analysis of Hot Supergiant Stars from IUE Data},
  booktitle = {Nordic--Baltic Astronomy Meeting},
  year = {1990},
  pages = {291--294}
}

@article{Sapar1990g,
  author = {Arved Sapar},
  title = {Решение уравнения стационарности методом резолвенты (A Resolvent Method to Solve the Equation of Statistical Equilibrium)},
  journal = {Tartu Astrofüüs. Obs. Publ.},
  year = {1990},
  volume = {53},
  pages = {45--51}
}

@book{Golovatyi1991,
  author = {Golovatyi, V. V. and Arved Sapar and Feklistova, T. and Kholtygin, A.F.},
  title = {Атомные данные для спектроскопии разреженной астрофизической плазмы. Газовые туманности. (Atomic Data for Spectroscopy of Rarefied Astrophysical Plasma. Gaseuos Nebulae)},
  publisher = {Valgus},
  year = {1991},
  pages = {3--175}
}

@article{Sapar1992,
  author = {Lilli Sapar and Arved Sapar},
  title = {The Ultraviolet Spectrum of $ CMa},
  journal = {Baltic Astronomy},
  year = {1992},
  volume = {1},
  pages = {37--46}
}

@article{Sapar1992a,
  author = {Lilli Sapar and Arved Sapar},
  title = {A Study of IUE Ultraviolet Spectrum of $i ^2$ Orionis},
  journal = {Baltic Astronomy},
  year = {1992},
  volume = {4},
  pages = {461--513}
}

@article{Sapar1993,
  author = {Arved Sapar and Raivo Poolamäe},
  title = {On Deviations from the Local Thermodynamic Equilibrium in Stellar Atmospheres},
  journal = {Baltic Astronomy},
  year = {1993},
  volume = {2},
  pages = {306--325}
}

@incollection{Nikitin1993,
  author = {Nikitin, A. A. and Kholtygin, A. F. and Arved Sapar and Feklistova, T.},
  title = {Recombination Spectra and chemical abundance Determinations for Planetary Nebulae},
  booktitle = {Planetary Nebulae. IAU Symposium No. 155},
  year = {1993},
  pages = {100}
}

@incollection{Sapar1993a,
  author = {Lilli Sapar and Arved Sapar},
  title = {Stellar Wind of $i ^2$ Ori and its Variability},
  booktitle = {IAU Symposium No 162: Pulsation, Rotation and Mass Loss of Early Type Stars. Abstracts},
  year = {1993},
  pages = {187}
}

@incollection{Sapar1994,
  author = {Arved Sapar},
  title = {Panspektraalne astrofüüsika},
  booktitle = {EFS Aastaraamat 1993},
  year = {1994},
  pages = {51--66}
}

@article{Sapar1994a,
  author = {Lilli Sapar and Arved Sapar},
  title = {Stellar wind of $i ^2$ Ori from its Resonance Lines},
  journal = {Baltic Astronomy},
  year = {1994},
  volume = {3},
  pages = {266--281}
}

@incollection{Sapar1994b,
  author = {Arved Sapar and Anna Aret and Raivo Poolamäe},
  title = {Panspectral Continuous Interstellar Opacity},
  booktitle = {22nd General Assembly of IAU, Astronomy Posters Abstracts},
  publisher = {Twin Press},
  year = {1994},
  pages = {176}
}

@incollection{Aret1994,
  author = {Anna Aret and Arved Sapar},
  title = {Generalized Diffusion Theory of Chemical Stratification in Stellar Atmospheres},
  booktitle = {22nd General Assembly of IAU, Astronomy Posters Abstracts},
  publisher = {Twin Press},
  year = {1994},
  pages = {240}
}

@incollection{Sapar1994d,
  author = {Lilli Sapar and Arved Sapar},
  title = {Resonance Line Profiles and their Variability in B Supergiant Spectra},
  booktitle = {22nd General Assembly of IAU, Astronomy Posters Abstracts},
  publisher = {Twin Press},
  year = {1994},
  pages = {240}
}

@article{Feklistova1994,
  author = {Feklistova, T. and Golovatyj, V. V. and Kholtygin, A. F. and Arved Sapar},
  title = {Atomic Line Catalogue for Gaseous Nebulae},
  journal = {Baltic Astronomy},
  year = {1994},
  volume = {3},
  pages = {292--320}
}

@article{Nikitin1994,
  author = {Nikitin, A. A. and Kholtygin, A. F. and Arved Sapar and Feklistova, T.},
  title = {Element Abundances in Planetary Nebulae from Recombination Line Spectra},
  journal = {Baltic Astronomy},
  year = {1994},
  volume = {3},
  pages = {112--123}
}

@incollection{Sapar1994c,
  author = {Lilli Sapar and Arved Sapar},
  title = {The stellar Wind of $i ^2$ Ori and its Variability},
  booktitle = {Pulsation, Rotation and Mass Loss of Early Type Stars. IAU Symposium No 162},
  year = {1994},
  pages = {534-535}
}

@article{Sapar1995,
  author = {Arved Sapar and Anna Aret},
  title = {The Formation of Chemical Peculiarities in Stellar Atmospheres},
  journal = {Astron. Astroph. Transactions},
  year = {1995},
  volume = {7},
  pages = {1--27}
}

@incollection{Aret1995,
  author = {Anna Aret and Arved Sapar},
  title = {Element Diffusion in Atmospheres of CP Stars},
  booktitle = {IAU Symposium 176 'Stellar Surface Structure', Posters Proceedings},
  year = {1995},
  pages = {142--144}
}

@incollection{Sapar1995a,
  author = {Lilli Sapar and Arved Sapar},
  title = {Variability of Epsilon Orionis Resonance Lines: Variegated Disk},
  booktitle = {IAU Symposium 176 'Stellar Surface Structure', Posters Proceedings},
  year = {1995},
  pages = {220--222}
}

@article{Sapar1995b,
  author = {Arved Sapar},
  title = {Kurelugu Universumist},
  journal = {Horisont},
  year = {1995},
  volume = {7},
  pages = {12--17}
}

@conference{Sapar1995c,
  author = {Arved Sapar and Feklistova, T},
  title = {Astronomy at Tartu Observatory during and after the World War II},
  booktitle = {Intenational Conference ``Astronomy and the Second World War''},
  year = {1995},
  pages = {33--34}
}

@article{Golovatyj1996,
  author = {Golovatyj, V. V. and Arved Sapar and Feklistova, T. and Kholtygin, A. F.},
  title = {On a New Catalogue of Atomic Data for Astrophysical Investigations},
  journal = {Astron. Astrophys. Transactions},
  year = {1996},
  volume = {11},
  pages = {331-337}
}

@incollection{Kholtygin1996,
  author = {Kholtygin, A. and Feklistova, T. and Arved Sapar and Golovatyj, V.},
  title = {Catalogue of Atomic Data for the Low-density Plasma of Gaseous Nebulae},
  booktitle = {IAU Symposium 180 'Planetary Nebulae', Abstract Booklet},
  year = {1996},
  pages = {61}
}

@article{Golovatyj1997,
  author = {Golovatyj, V. and Arved Sapar and Feklistova, T. and Kholtygin, A.},
  title = {Catalogue of Atomic Data for Low-Density Astrophysical Plasma},
  journal = {Astron. Astrophys. Transactions},
  year = {1997},
  volume = {12},
  pages = {85-241}
}

@incollection{Sapar1997,
  author = {Arved Sapar and Lilli Sapar},
  title = {Formation of Resonance Line Profiles in Stellar Wind: Theory and Observations},
  booktitle = {New Trends in Astronomy and Astrophysics},
  year = {1997},
  pages = {93}
}

@incollection{Sapar1997a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Expression of Turbulence and Variability of Stellar Winds in Resonance Line Profiles},
  booktitle = {Cyclical Variability in Stellar Winds},
  year = {1997},
  pages = {44}
}

@incollection{Sapar1997b,
  author = {Arved Sapar},
  title = {Universumi varane evolutsioon},
  booktitle = {Universum},
  year = {1997},
  pages = {16--22}
}

@incollection{Sapar1997c,
  author = {Arved Sapar and Feklistova, T.},
  title = {Астрономия в Тартуской обсерватории до, во время и после Второы мировой войны},
  booktitle = {AАстрономия на крутых поворотах XX века},
  publisher = {Феникс},
  year = {1997},
  pages = {254--262},
  note = {in Russian}
}

@article{Aret1998,
  author = {Anna Aret and Arved Sapar},
  title = {Particle Diffusion in the Atmospheres of CP Stars},
  journal = {Contributions Astr. Obs. Skalnaté Pleso},
  year = {1998},
  volume = {27},
  pages = {329-332}
}

@incollection{Aret1998a,
  author = {Anna Aret and Arved Sapar},
  title = {Modelling of Light-Induced Drift and Radiative Accelerations in Atmospheres of CP Stars},
  booktitle = {JENAM98, Late Abstracts},
  year = {1998},
  pages = {12}
}

@incollection{Sapar1998a,
  author = {Arved Sapar and Lilli Sapar},
  title = {Expression of Turbulence and Variability of Stellar Winds in Resonance Line Profiles},
  booktitle = {Cyclical Variability in Stellar Winds, Proc. ESO Workshop},
  year = {1998},
  pages = {125}
}

@article{Sapar1998c,
  author = {Arved Sapar and Lilli Sapar},
  title = {Stellar Wind Variability from IUE Spectra of Epsilon Orionis},
  journal = {Baltic Astronomy},
  year = {1998},
  volume = {7},
  pages = {451-465}
}

@incollection{Sapar1998,
  author = {Arved Sapar and Lilli Sapar},
  title = {Phenomena in Turbulent Winds of Hot Stars},
  booktitle = {Variable and Non-spherical Stellar Winds in Luminous Hot Stars, Abstracts of IAU Coll. No.169},
  year = {1998},
  pages = {73}
}

@incollection{Sapar1998b,
  author = {Arved Sapar and Lilli Sapar},
  title = {Resonance Doublet Profiles of Hot Supergiants Formed in the Turbulent Stellar Wind},
  booktitle = {Prospects of Astronomy and Astrophysics for the New Millenium, JENAM98. Abstracts},
  year = {1998},
  pages = {147}
}

@incollection{Aret1999,
  author = {Anna Aret and Arved Sapar},
  title = {Isotopic Anomalies in CP Stars},
  booktitle = {Gamow Memorial International Conference "The Universe of Gamow: Original Ideas in Astrophysics and Cosmology". Abstracts},
  publisher = {Astroprint},
  year = {1999},
  pages = {60}
}

@article{Sapar1999,
  author = {Arved Sapar and Lilli Sapar},
  title = {Formation of Resonance Spectral Line Profiles in Stellar Wind: Theory and Observations},
  journal = {Astronomy and Astrophysics Transactions},
  year = {1999},
  volume = {18},
  pages = {475-486}
}

@article{Aret1999a,
  author = {Anna Aret and Arved Sapar},
  title = {Isotopic Anomalies in CP Stars},
  journal = {Odessa Astronomical Publications},
  year = {1999},
  volume = {12},
  pages = {162--165}
}

@incollection{Sapar1999a,
  author = {Arved Sapar},
  title = {Modelling and Diagnostics of Smooth Winds},
  booktitle = {Thermal and Ionization Aspects of Flows from Hot Stars: Observations and Theory. Abstract Booklet of Tartu Workshop},
  year = {1999},
  pages = {23}
}

@incollection{Sapar1999b,
  author = {Arved Sapar and Lilli Sapar and Raivo Poolamäe},
  title = {A Standard Saturated P Cyg Profile},
  booktitle = {Thermal and Ionization Aspects of Flows from Hot Stars: Observations and Theory. Abstract Booklet of Tartu Workshop},
  year = {1999},
  pages = {29}
}

@incollection{Sapar2000b,
  author = {Arved Sapar},
  title = {In Memory of Academician Viktor Viktorovitch Sobolev},
  booktitle = {Thermal and Ionization Aspects of Flows from Hot Stars: Observations and Theory. ASP Conf. Series 204},
  year = {2000},
  pages = {122}
}

@incollection{Sapar2000a,
  author = {Arved Sapar},
  title = {Modelling and Diagnostics of Smooth Winds},
  booktitle = {Thermal and Ionization Aspects of Flows from Hot Stars: Observations and Theory. ASP Conf. Series 204},
  year = {2000},
  pages = {123--134}
}

@incollection{Sapar2000,
  author = {Arved Sapar and Lilli Sapar and Raivo Poolamäe},
  title = {A Standard Saturated P Cyg Profile},
  booktitle = {Thermal and Ionization Aspects of Flows from Hot Stars: Observations and Theory. ASP Conf. Series 204},
  year = {2000},
  pages = {237-238}
}

@article{Aret2002,
  author = {Anna Aret and Arved Sapar},
  title = {Light-induced drift for Hg isotopes in chemically peculiar stars},
  journal = {Astron. Nachr.},
  year = {2002},
  volume = {323},
  pages = {21-30}
}

@article{Sapar2002,
  author = {Arved Sapar and Lilli Sapar and Raivo Poolamäe},
  title = {Analytical Solutions for Saturated P Cygni Type Profiles},
  journal = {Astrophysics and Space Science},
  year = {2002},
  volume = {279},
  pages = {229-244}
}

@incollection{Aret2002a,
  author = {Anna Aret and Arved Sapar},
  title = {Light-induced Drift in Atmospheres of CP Stars},
  booktitle = {IAU Symposium No. 210 "Modelling of Stellar Atmospheres". Abstracts},
  year = {2002},
  pages = {54}
}

@incollection{Sapar2002a,
  author = {Arved Sapar and Raivo Poolamäe},
  title = {Compact and handy FORTRAN code SMART for physics of stellar atmospheres},
  booktitle = {Workshop "Stellar Atmospheres Modeling". Abstracts},
  year = {2002}
}

@incollection{Sapar2003a,
  author = {Arved Sapar and Raivo Poolamäe},
  title = {"SMART": A Compact and Handy FORTRAN Code for Physics of Stellar Atmospheres},
  booktitle = {Stellar Atmosphere Modeling. ASP Conf. Series 288},
  year = {2003},
  pages = {95-98}
}

@article{Sapar2003,
  author = {Arved Sapar and Lilli Sapar and Raivo Poolamäe},
  title = {Analytical Solutions for Saturated P Cygni Type Profiles II: General Case},
  journal = {Astrophys. Space Sci.},
  year = {2003},
  volume = {286},
  pages = {333-345}
}

@incollection{Aret2003,
  author = {Anna Aret and Arved Sapar},
  title = {Light-Induced Drift in Atmospheres Of CP Stars},
  booktitle = {IAU Symposium No. 210},
  year = {2003},
  pages = {7p},
  note = {CD-ROM, list B4}
}

@article{Karitskaya2003,
  author = {Karitskaya, E. A. and Bondar, A. V. and Bochkarev, N. G. and Galazutdinov, G. A. and Musaev F. A. and Arved Sapar},
  title = {The Optical High-resolution Spectroscopy as a Method of X-ray Binary Cyg X-1 Investigation},
  journal = {Odessa Astronomical Publications},
  year = {2003},
  volume = {16},
  pages = {33 - 36}
}

@incollection{Sapar2004,
  author = {Arved Sapar},
  title = {Maa põlvnemine ja sünd},
  booktitle = {Maa Universumis},
  year = {2004},
  pages = {11-19}
}

@article{Sapar2004a,
  author = {Arved Sapar},
  title = {Leo Sorgsepp (1.V.1928 -- 1.IX.2003)},
  journal = {Tähetorni kalender 2005. aastaks},
  year = {2004},
  pages = {122--124}
}

@article{Sapar2004b,
  author = {Arved Sapar},
  title = {Kraadiõppe efektiivsuse ja teaduse ronomee tõstmisest: [arvamusi akadeemikutelt]},
  journal = {Eesti Teaduste Akadeemia aastaraamat IX (36), 2003},
  year = {2004},
  pages = {182--183}
}

@article{Sapar2005,
  author = {Arved Sapar and Lilli Sapar and Raivo Poolamäe},
  title = {Scattered Light Redistribution Functions for Spectral Lines in Media with Anisotropic Macroturbulence},
  journal = {Baltic Astronomy},
  year = {2005},
  volume = {14},
  pages = {122-143}
}

@incollection{Sapar2005b,
  author = {Arved Sapar and Anna Aret},
  title = {The Role of Light-Induced Drift in Diffusion of Heavy Metals and their Isotopes in CP Stars: an Example of Mercury},
  booktitle = {Element Stratification in Stars: 40 Years of Atomic Diffusion (a meeting in honour of Georges Michaud). Book of Abstracts},
  year = {2005},
  pages = {40},
  note = {June 6-10}
}

@article{Sapar2005a,
  author = {Arved Sapar and Lilli Sapar},
  title = {UV-taevaluukide lahtimuukimine kosmoses},
  journal = {Horisont},
  year = {2005},
  volume = {6},
  pages = {39-44}
}

@inproceedings{Sapar2005c,
  author = {Arved Sapar and Anna Aret and Raivo Poolamäe},
  title = {The Role of Light-Induced Drift in Diffusion of Heavy Metals and their Isotopes in CP Stars: an Example of Mercury},
  booktitle = {Proceedings of "Element Stratification in Stars: 40 Years of Atomic Diffusion. Meeting in Honour of Georges Michaud"},
  year = {2005},
  volume = {17},
  pages = {341--344},
  note = {jeld on June 6--10, 2005 in Château de Mons, France}
}

@article{Sapar2006a,
  author = {Arved Sapar and Lilli Sapar},
  title = {UV-kiirguse uuringud kui kosmosekriminalistika},
  journal = {Horisont},
  year = {2006},
  volume = {1},
  pages = {36-43}
}

@article{Sapar2006,
  author = {Arved Sapar and Raivo Poolamäe and Lilli Sapar},
  title = {High-Precision Approximation Expressions for Line Profiles of Hydrogenic Particles},
  journal = {Baltic Astronomy},
  year = {2006},
  volume = {15},
  pages = {435-447}
}

@article{Sapar2006b,
  author = {Arved Sapar},
  title = {[Arvamusi akadeemikutelt]},
  journal = {Eesti Teaduste Akadeemia aastaraamat XI(38), 2005},
  year = {2006},
  pages = {197--199}
}

@article{Karitskaya2006,
  author = {Karitskaya, E. A. and Agafonov, M. I. and Bochkarev, N. G. and Bondar, A. V. and Glazutdinov, G. A. and Lee, B. C. and Musaev, F. A. and Arved Sapar and Sharova, O. I. and Shimanskii, V. V.},
  title = {Cyg X-1=V1357 Cyg investigation based on high-resolution optical spectroscopy of 2002--2004},
  journal = {Astron. Astroph. Transactions},
  year = {2006},
  volume = {24},
  pages = {383--389}
}

@incollection{Sapar2007,
  author = {Arved Sapar and Anna Aret and Lilli Sapar and Raivo Poolamäe},
  title = {Разделение изотопов в атмосферах CP звезд вследствие светоиндуцированного дреифа (The Separation of Isotopes of Chemical Elements in the Atmospheres of CP Stars due to LID)},
  booktitle = {Методы спектроскопии в современной астрофизике (Spectroscopic Methods in Modern Astrophysics)},
  publisher = {INASAN},
  year = {2007},
  pages = {220--235}
}

@incollection{Sapar2007a,
  author = {Arved Sapar and Raivo Poolamäe and Lilli Sapar and Anna Aret},
  title = {Расчет моделей атмосфер и спектров горячих звезд по программе SMART: результаты и проблемы (Computation of Model Atmospheres and Spectra of Hot Stars by Program SMART: Results and Problems)},
  booktitle = {Методы спектроскопии в современной астрофизике (Spectroscopic Methods in Modern Astrophysics)},
  publisher = {INASAN},
  year = {2007},
  pages = {236--254},
  note = {13.09--15.09.2006, Moscow, Russia}
}

@conference{Sapar2008,
  author = {Arved Sapar and Anna Aret and Lilli Sapar and Raivo Poolamäe},
  title = {A Pan-Spectral Method of Abundance Determination},
  booktitle = {Precision Spectroscopy in Astrophysics: ESO Astrophysics Symposia / Lisbon / Aveiro, Workshop Held in Aveiro, Portugal, 11--15 September 2006.},
  publisher = {Springer Verlag},
  year = {2008},
  pages = {145--148}
}