TY  - JOUR
AU  - L. I. Zhilevich
TI  - On the question of separatrices and limit cycles of a certain differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 1525
EP  - 1527
VL  - 7
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_8_a19/
LA  - ru
ID  - DE_1971_7_8_a19
ER  -