Wang, Xiaofang
Liang, Pengfei
Wei, Lingling
Chao, Xiaolian
Yang, Zupei
Funding for this research was provided by:
Scientific and Technology Research Project in Xi’an (CXY1342(4))
Innovation Funds of Graduate Programs, Shaanxi Normal University (2013CXB020)
National Science Foundation of China (21401123, 51172136)
the Fundamental Research Funds for the Central Universities (201403006, 201402061)