Zhu, Li-xia
Xiao, Qian
Shen, Yu-fang
Li, Shi-qing
Funding for this research was provided by:
National Natural Science Foundation of China (51279197, 41671307)
Fundamental Research Funds for the Central Universities (YQ2013009)
Natural Science Basic Research Plan in Shaanxi Province of China (2012JM3010, K3320215199)