TY  - JOUR
AU  - Ya. V. Bykov
AU  - L. Ya. Bykova
AU  - E. I. Shevtsov
TI  - Sufficient conditions for the oscillatoriness of the solutions of nonlinear differential equations with deviating argument
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1555
EP  - 1560
VL  - 9
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_9_a0/
LA  - ru
ID  - DE_1973_9_9_a0
ER  -