%0 Journal Article %A L. V. Rakin %T The existence of a solution of a certain nonlinear boundary value problem %J Differencialʹnye uravneniâ %D 1975 %P 2100-2101 %V 11 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_11_a22/ %G ru %F DE_1975_11_11_a22