%0 Journal Article %A I. T. Kiguradze %A N. R. Lezhava %T Certain nonlinear two-point boundary value problems %J Differencialʹnye uravneniâ %D 1974 %P 2147-2161 %V 10 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_12_a5/ %G ru %F DE_1974_10_12_a5