%0 Journal Article
%A G. T. Kozlov
%A A. I. Kokorin
%T An elementary theory of torsion-free abelian groups with a
%J Algebra i logika
%D 1969
%P 320-334
%V 8
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1969_8_3_a3/
%G ru
%F AL_1969_8_3_a3