%0 Journal Article
%A L. N. Vaserstein
%T Subgroups of finite index of a spinor group of rank $\geqslant2$
%J Sbornik. Mathematics
%D 1968
%P 161-166
%V 4
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1968_4_2_a1/
%G en
%F SM_1968_4_2_a1