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中国科学院数学与系统科学研究院期刊网
ISSN 1439-8516 CN 11-2039/O1
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The Bifurcation of the Equatorial Periodic Orbit of the Planar Polynomial Vector Fields
Xin An ZHANG, Lan Sun CHEN, Zhao Jun LIANG
Acta Mathematica Sinica . 2001, (
3
): 471 -480 . DOI: 10.1007/s101140100120