TY  - JOUR
AU  - R. M. Mints
TI  - Limit cycles of a quadratic system of differential equations in the presence of an integral line
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 351
EP  - 352
VL  - 25
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_2_a34/
LA  - ru
ID  - DE_1989_25_2_a34
ER  -