Zhu, Yongchao
Liao, Weibiao
Niu, Lijuan
Wang, Meng
Ma, Zhanjun
Funding for this research was provided by:
the National Natural Science Foundation of China (31160398)
the Post Doctoral Foundation of China (20100470887, 2012T50828)
the Key Project of Chinese Ministry of Education (211182)
the Research Fund for the Doctoral Program of Higher Education (20116202120005)
the Natural Science Foundation of Gansu Province, China (1308RJZA179)