Liu, Geng
Guo, Wenjiong
Niu, Junjie
An, Xiangsheng
Zhao, Long
Funding for this research was provided by:
Young Scientists Fund of National Natural Science Foundation (41401236, 41301342)
Youth Science and Technology Research Foundation of Shanxi, China (2015021166)
the Program for the Philosophy and Social Sciences Research of Higher Learning Institutions of Shanxi (2016330)