%0 Journal Article
%A N. G. Khisamiev
%T Hierarchies of torsion-free abelian groups
%J Algebra i logika
%D 1986
%P 205-226
%V 25
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1986_25_2_a4/
%G ru
%F AL_1986_25_2_a4