TY  - JOUR
AU  - R. M. Fedorov
TI  - Upper bounds of the number of orbital topological types of polynomial vector fields on the plane ``modulo limit cycles''
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2004
SP  - 569
EP  - 570
VL  - 59
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2004_59_3_a10/
LA  - en
ID  - RM_2004_59_3_a10
ER  -