Zhang, Quan-Xing
Guan, De-Long
Niu, Yao
Sang, Li-Qin
Zhang, Xiu-Xiu
Xu, Sheng-Quan
Funding for this research was provided by:
Natural Science Basic Research Plan in Shaanxi Province (2013JC2-04; 2013JC2-05)
Key Research Fund of Shaanxi Academy of Sciences (2012K-01)