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中国科学院数学与系统科学研究院期刊网
ISSN 0168-9673 CN 11-2041/O1
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Cubic Lienard equation with quadradic damping(I)
Yu Quan WANG, Zhu Jun JING
Acta Mathematicae Applicatae Sinica(English Series) . 2000, (
1
): 42 -52 .