%0 Journal Article
%A V. G. Kopp
%T Invariants of groups of motions in pseudo-Euclidean spaces
%J Trudy Geometricheskogo Seminara
%D 1983
%P 50-57
%V 15
%U http://geodesic.mathdoc.fr/item/KUTGS_1983_15_a7/
%G ru
%F KUTGS_1983_15_a7