%0 Journal Article
%A L. N. Vaserstein
%A A. V. Mikhalev
%T The normal subgroups of the orthogonal group over a ring with
%J Algebra i logika
%D 1970
%P 629-632
%V 9
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1970_9_6_a1/
%G ru
%F AL_1970_9_6_a1