%0 Journal Article %A A. V. Bernshtein %T Asymptotic properties of group estimators of a~random collection %J Teoriâ veroâtnostej i ee primeneniâ %D 1974 %P 219-223 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1974_19_1_a24/ %G ru %F TVP_1974_19_1_a24