%0 Journal Article
%A V. I. Zubov
%T On the theory of the existence of solutions of boundary value problems for systems of differential equations
%J Differencialʹnye uravneniâ
%D 1970
%P 629-631
%V 6
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_4_a3/
%G ru
%F DE_1970_6_4_a3