Li, Fagen
Zheng, Zhaohui
Jin, Chunhua
Funding for this research was provided by:
National Natural Science Foundation of China (61073176)
National Natural Science Foundation of China (61272525)
National Natural Science Foundation of China (61302161)
National Natural Science Foundation of China (61462048)
Fundamental Research Funds for the Central Universities (ZYGX2013J069)