%0 Journal Article
%A V. S. Il'kiv
%A B. I. Ptashnic
%T A problem with nonlocal boundary conditions for systems of partial differential equations with constant coefficients
%J Differencialʹnye uravneniâ
%D 1984
%P 1012-1023
%V 20
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_6_a10/
%G ru
%F DE_1984_20_6_a10