TY  - JOUR
AU  - A. E. Rudenok
TI  - Limit cycles of a two-dimensional autonomous system with quadratic nonlinearities
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 2072
EP  - 2082
VL  - 21
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_12_a7/
LA  - ru
ID  - DE_1985_21_12_a7
ER  -