TY  - JOUR
AU  - A. Ya. Lepin
TI  - Necessary and sufficient conditions for the existence of a solution of the two-point boundary value problem for a second order nonlinear ordinary differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 1384
EP  - 1388
VL  - 6
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_8_a5/
LA  - ru
ID  - DE_1970_6_8_a5
ER  -