2011
Existence and stability of the grazing periodic trajectory in a two-degree-of-freedom vibro-impact system.
[DOI]
Jieqiong Xu
,
Qunhong Li
,
Nan Wang
Appl. Math. Comput., 2011

2009
Local and global bifurcations in an SIRS epidemic model.
[DOI]
Zigen Song
,
Jian Xu
,
Qunhong Li
Appl. Math. Comput., 2009