Zeng, Xiang
Wu, Qunying
Funding for this research was provided by:
the National Natural Science Foundation of China (11361019)
the Scientific Research Project of Education Department of Guangxi (YB2014150)
the Guangxi China Science Foundation (2013GXNSFDA019001, 2014GXNSFAA118015, 2013GXNSFAA278003)