TY  - JOUR
AU  - M. V. Dolov
TI  - A certain method of investigation of limit cycles
JO  - Differencialʹnye uravneniâ
PY  - 1968
SP  - 812
EP  - 820
VL  - 4
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1968_4_5_a4/
LA  - ru
ID  - DE_1968_4_5_a4
ER  -