Zheng, J.
Chen, G. H.
Chen, X.
Li, Q. N.
Xu, J. W.
Yuan, C. L.
Zhou, C. R.
Funding for this research was provided by:
Natural Science Foundation of China (51162002)
Science and Technology Project of Guangxi Returned Personnel (2012-250)
Innovation Project of Graduate Education of GUET (GDYCSZ201485)