%0 Journal Article
%A Yu. L. Ershov
%T Every projective $C_2$-group is realizable
%J Algebra i logika
%D 1992
%P 119-131
%V 31
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1992_31_2_a1/
%G ru
%F AL_1992_31_2_a1