%0 Journal Article %A B. M. Arkhipov %A A. Ya. Khokhryakov %T The Sturm--Liouville problem of a second order nonlinear ordinary differential equation %J Differencialʹnye uravneniâ %D 1967 %P 1484-1494 %V 3 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1967_3_9_a7/ %G ru %F DE_1967_3_9_a7