Construction of a catalogue of groups in 2dF survey and study of the selection effects: 2dF group paper (E. Tago, J. Einasto, E. Saar, M. Einasto and others)
Construction of a new catalogue of superclusters in 2dF survey: 2dF density field superclusters (J. Einasto, M. Einasto, E. Tago, E. Saar, and others) and the studies of the morphology and substructure and galaxy populations of the richest superclusters from this cataloque.
Construction of a catalogue of groups of galaxies in the SDSS DR5 group catalogue (E. Tago, J. Einasto, E. Saar, M. Einasto, J. Vennik and E. Tempel)
Study of the clusters and superclusters in the Sloan Digital Sky survey and Las Campanas Loose Groups in the supercluster-void network (J. Einasto, M. Einasto, P. Heinämäki, E. Saar together with D. L. Tucker, and V. Müller)
Study of the properties of galaxy groups and clusters and dark matter haloes in different environments: AA paper I , Cape Town talk and AA paper II (J. Einasto, M. Einasto, E. Saar, I. Suhhonenko, P. Heinämäki, E. Tago, together with D. L. Tucker and G. Hütsi)
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