%0 Journal Article
%A V. N. Sushch
%T On some difference analogues of first-order invariant hyperbolic systems
%J Differencialʹnye uravneniâ
%D 1999
%P 411-417
%V 35
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1999_35_3_a15/
%G ru
%F DE_1999_35_3_a15