Yu, Jie
Li, Yun
Lu, Quanfang
Zheng, Jidong
Yang, Shuxiu
Jin, Fang
Wang, Qizhao
Yang, Wu
Funding for this research was provided by:
National Natural Science Foundation of China (CN) (21367023)
National Natural Science Foundation of China (CN) (21567025)
Natural Science Foundation of Gansu Province (CN) (1208RJZA161)
Natural Science Foundation of Gansu Province (CN) (1308RJZA144)
Scientific Research Project in Higher Education Institutions of Gansu Province(CN) (2013-019)
Key Project of Young Teachers' Scientific Research Promotion of Northwest Normal University(CN) (NWNU-LKQN-12-9)