Wang, Xi
Gong, Jing-zhi
Zhao, Liang
Che, Xiao-fen
Li, Hai-ning
Ren, Yi
Funding for this research was provided by:
National Natural Science Foundation of China (31300158, 31100141, 31170215)
Chinese Universities Scientific Fund (QN2012020, 245201506)
Specialized Research Fund for the Doctoral Program of Higher Education of China (20120204120032)
Scientific Research Foundation for Doctoral Scholars of Northwest A&F University (Z109021118)
the Special Scientific Research Foundation of Shaanxi Province