文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
Zifen Zhang
发表
Unfolding of a Quadratic Integrable System with Two Centers and Two Unbounded Heteroclinic Loops
Freddy Dumortier, Chengzhi Li, Chengzhi Li, 1997 .