Qi, Enfeng
Wang, Dongyu
Gao, Bo
Li, Yang
Li, Guojun
Funding for this research was provided by:
National Science Foundation (1553680)
National Natural Science Foundation of China (No. 61432010, 61272016 and 31571354)
Article History
Received: 15 June 2017
Accepted: 26 September 2017
First Online: 3 October 2017
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