%0 Journal Article
%A M. P. Sapagovas
%A R. J. Čiegis
%T On some boundary value problems with a nonlocal condition
%J Differencialʹnye uravneniâ
%D 1987
%P 1268-1274
%V 23
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_7_a17/
%G ru
%F DE_1987_23_7_a17