Pei Yu

Normal Forms Melnikov Functions And Bifurcations Of Limit Cycles

Li shi ren shi gai lun =

Dang dai Zhongguo shi jie li shi xue yan jiu (1949-2009)

世界历史

Zhongguo shi jie li shi xue 30 nian, 1978-2008 =

Quan qiu hua he quan qiu shi =

Shi xue si chao he she hui si chao

Shi jie shi yan jiu