Ding, Haimin
Liu, Qing
Jie, Jinchuan
Kang, Wenli
Yue, Ying
Zhang, Xinchun
Funding for this research was provided by:
National Natural Science Foundation of China (51301068)
National Natural Science Foundation of China (CN) (11402089)
Natural Science Foundation of Hebei Province, China (E2014502003)
Fundamental Research Funds for the Central Universities of China (2014MS116)