%0 Journal Article
%A V. S. Ryaben'kii
%T On~systems of difference equations on~polyhedra
%J Sbornik. Mathematics
%D 1969
%P 73-85
%V 8
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1969_8_1_a3/
%G en
%F SM_1969_8_1_a3