%0 Journal Article %A V. G. Zvyagin %T The existence of a continuous branch for the eigenfunctions of a nonlinear elliptic boundary value problem %J Differencialʹnye uravneniâ %D 1977 %P 1524-1527 %V 13 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_8_a24/ %G ru %F DE_1977_13_8_a24