%0 Journal Article %A V. N. Nikulin %T On the theory of equivariant estimation on groups %J Teoriâ veroâtnostej i ee primeneniâ %D 1986 %P 777-781 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1986_31_4_a10/ %G ru %F TVP_1986_31_4_a10