TY  - JOUR
AU  - J. Llibre
TI  - Open problems on the algebraic limit cycles of planar polynomial vector fields
JO  - Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica
PY  - 2008
SP  - 19
EP  - 26
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BASM_2008_1_a2/
LA  - en
ID  - BASM_2008_1_a2
ER  -