TY  - JOUR
AU  - A. I. Yablonskii
TI  - On limit cycles of a certain differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1966
SP  - 335
EP  - 344
VL  - 2
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1966_2_3_a4/
LA  - ru
ID  - DE_1966_2_3_a4
ER  -