Wang, Yan
Wang, Yishu
Han, Jing
Tan, Shihai
Guo, Fu
Funding for this research was provided by:
National Natural Science Foundation of China (51401006)
Beijing Municipal Natural Science Foundation (2162005, 2172006, 2172009)
the Science and Technology Project of Beijing Municipal Education Commission (KM201710005003)
Article History
Received: 22 October 2017
Accepted: 8 January 2018
First Online: 16 January 2018