Fang, D. H.
Zhang, Y.
Funding for this research was provided by:
the National Natural Science Foundation of China (11461027)
Hunan Provincial Natural Science Foundation of China (2016JJ2099)
the Scientific Research Fund of Hunan Provincial Education (17A172)
Article History
Received: 28 July 2017
Accepted: 9 January 2018
First Online: 16 January 2018