TY  - JOUR
AU  - V. V. Ostroumov
TI  - On a differential inequality for a boundary value problem
JO  - Differencialʹnye uravneniâ
PY  - 1965
SP  - 625
EP  - 630
VL  - 1
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1965_1_5_a5/
LA  - ru
ID  - DE_1965_1_5_a5
ER  -