%0 Journal Article %A A. G. Lomtatidze %T A boundary value problem for second-order nonlinear ordinary differential equations with singularities %J Differencialʹnye uravneniâ %D 1986 %P 416-426 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_3_a6/ %G ru %F DE_1986_22_3_a6