TY  - JOUR
AU  - V. V. Stolyarov
TI  - A quadratic system with a limit cycle surrounded by a separatrix loop of a saddle
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 1643
EP  - 1644
VL  - 28
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_9_a25/
LA  - ru
ID  - DE_1992_28_9_a25
ER  -