%0 Journal Article
%A P. A. Krylov
%T On two problems concerning extension groups of Abelian groups
%J Sbornik. Mathematics
%D 1995
%P 59-76
%V 81
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1995_81_1_a3/
%G en
%F SM_1995_81_1_a3