Liu, Ruochen
Wang, Fangfang
He, Manman
Jiao, Licheng
Funding for this research was provided by:
National Natural Science Foundation of China (61373111)
the Provincial Natural Science Foundation of Shaanxi of China (2014JM8321)
Article History
Received: 1 February 2018
Revised: 22 January 2019
Accepted: 23 January 2019
First Online: 26 February 2019