%0 Journal Article
%A A. Yu. Ol'shanskii
%T Efficient embeddings of countable groups
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1989
%P 28-34
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1989_2_a7/
%G ru
%F VMUMM_1989_2_a7