%0 Journal Article
%A A. A. Bondarenko
%T On the problem of the maximality of arithmetic subgroups of indefinite orthogonal groups of type~$(D_l)$
%J Sbornik. Mathematics
%D 1991
%P 417-430
%V 69
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1991_69_2_a5/
%G en
%F SM_1991_69_2_a5