Tang, Liang
Wang, Weiwei
Zhou, Wenlong
Cheng, Kai
Yang, Yan
Liu, Minzhi
Cheng, Kedi
Wang, Wei
Funding for this research was provided by:
the National Science Foundation of China (30772677, 81072562)
the Fundamental Research Funds for the Central Universities (2012N06)
the National Science and Technology Project of China (2012ZX09301002-001)