%0 Journal Article
%A R. M. Garipov
%T Classification up to isomorphism of crystallographic groups on a pseudo-Euclidean plane. III. Lattices $*$. Series IX, X
%J Sibirskij žurnal industrialʹnoj matematiki
%D 2004
%P 23-39
%V 7
%N 2
%U http://geodesic.mathdoc.fr/item/SJIM_2004_7_2_a3/
%G ru
%F SJIM_2004_7_2_a3