@article{PMIHES_1986__64__111_0, author = {Bam\'on, Rodrigo}, title = {Quadratic vector fields in the plane have a finite number of limit cycles}, journal = {Publications Math\'ematiques de l'IH\'ES}, volume = {64}, year = {1986}, pages = {111-142}, mrnumber = {88d:58095}, zbl = {0625.58028}, language = {en}, url = {http://dml.mathdoc.fr/item/PMIHES_1986__64__111_0} }
Bamon, Rodrigo. Quadratic vector fields in the plane have a finite number of limit cycles. Publications Mathématiques de l'IHÉS, Tome 64 (1986) pp. 111-142. http://gdmltest.u-ga.fr/item/PMIHES_1986__64__111_0/
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