PDF(287 KB)
On the Period Function of a Class of Reversible Quadratic Centers
Hai Hua LIANG, Yun Lin ZHAO
Acta Mathematica Sinica ›› 2011, Vol. 27 ›› Issue (5) : 905-918.
PDF(287 KB)
PDF(287 KB)
On the Period Function of a Class of Reversible Quadratic Centers
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