TY  - JOUR
AU  - V. G. Romanovsky
TI  - On the cyclicity of a singular point of a cubic system
JO  - Differencialʹnye uravneniâ
PY  - 1996
SP  - 784
EP  - 787
VL  - 32
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1996_32_6_a9/
LA  - ru
ID  - DE_1996_32_6_a9
ER  -