%0 Journal Article
%A B. Zeković
%T Universal covering rings and their radicals
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1989
%P 14-17
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1989_6_a2/
%G ru
%F VMUMM_1989_6_a2