Zhu, Yongchao
Liao, Weibiao
Funding for this research was provided by:
The National Natural Science Foundation of China (31160398 and 31560563)
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)