TY  - JOUR
AU  - V. A. Yakubovich
TI  - On a class of non-linear differential equations
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 44
EP  - 46
VL  - 117
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_117_1_a9/
LA  - ru
ID  - DAN_1957_117_1_a9
ER  -