Fan, Xunli
Jia, Huili
Wang, Lin
Xu, Pengfei
Funding for this research was provided by:
Natural Science Basic Research Plan in Shaanxi Province (2014KW03-02, 2014JQ8327)
National Natural Science Foundation of China (CN) (61503300, 61502387)
Scientific Research Program by Shaanxi Provincial Education Department (14JK1750, 15JK1748)