%0 Journal Article %A P. E. Zhidkov %A V. Zh. Sakbaev %T On the existence of a countable set of solutions of a certain nonlinear boundary value problem %J Differencialʹnye uravneniâ %D 1995 %P 630-640 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1995_31_4_a9/ %G ru %F DE_1995_31_4_a9