中国科学院数学与系统科学研究院期刊网
Upper Bound on the Number of Zeros of Abelian Integrals for a Class of Quadratic Reversible System
HONG Xiaochun
Acta Mathematicae Applicatae Sinica . 2010, (1): 769 -779 .  DOI: 10.12387/C2010020