Xu, Jie
Wen, Qiaoyan
Li, Wenmin
Shen, Jian
He, Debiao
Funding for this research was provided by:
National Natural Science Foundation of China (61300181, 61272057, 61202434, 61170270, 61100203, 61121061,61572379)
the Fundamental Research Funds for the Central Universities (2012RC0612, 2011YB01)