%0 Journal Article
%A È. B. Vinberg
%T Some examples of crystallographic groups in Lobachevskii spaces
%J Sbornik. Mathematics
%D 1969
%P 617-622
%V 7
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1969_7_4_a7/
%G en
%F SM_1969_7_4_a7