%0 Journal Article
%A N. I. Kazeeva
%A S. N. Shimanov
%T A theorem on critical cases of systems of difference equations
%J Differencialʹnye uravneniâ
%D 1976
%P 234-240
%V 12
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_2_a5/
%G ru
%F DE_1976_12_2_a5