Li, Qia
Xu, Yuesheng
Zhang, Na
Funding for this research was provided by:
National Science Foundation (DMS-1522332)
National Natural Science Foundation of China (11501584, 11471013)
Natural Science Foundation of Guangdong Province (2014A030310332, 2014A030310414)
National Natural Science Foundation of China (91530117)
Article History
Received: 6 February 2016
Revised: 19 August 2016
Accepted: 23 August 2016
First Online: 29 August 2016