%0 Journal Article
%A V. D. Ponomarev
%T Existence of a solution of a boundary value problem with a functional boundary condition
%J Differencialʹnye uravneniâ
%D 1973
%P 2162-2165
%V 9
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_12_a5/
%G ru
%F DE_1973_9_12_a5