%0 Journal Article %A A. A. Abramov %A L. F. Yukhno %T A method for solving a nonlinear selfadjoint spectral problem for a second-order ordinary differential equation with coupled boundary conditions %J Differencialʹnye uravneniâ %D 1999 %P 206-211 %V 35 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1999_35_2_a4/ %G ru %F DE_1999_35_2_a4