TY  - JOUR
AU  - Bendjeddou, Ahmed
AU  - Cheurfa, Rachid
TI  - Cubic and quartic planar differential systems with exact algebraic limit cycles
JO  - Electronic Journal of Differential Equations
PY  - 2011
VL  - 2011
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a4/
LA  - en
ID  - EJDE_2011__2011__a4
ER  -