Song, H. J.
Wang, Z. J.
Wang, J. B.
Zhong, X. L.
Funding for this research was provided by:
National Natural Science Foundation of China (51572233)
National Natural Science Foundation of China (61574121, 11372266)
the general project of Hunan Provincial Department of Education (17C1517)
Article History
Received: 20 August 2017
Accepted: 22 January 2018
First Online: 25 January 2018