Cheng, Shu-Li
Wang, Lie-Jun
Huang, Gao
Du, An-Yu
Funding for this research was provided by:
National Natural Science Foundation (61771416)
the Higher Education Innovation Research Group (XJEDU2017T002)
CERNET Innovation Project (NGII20170325, NGII20180201)
Article History
Received: 25 December 2018
Revised: 20 February 2019
Accepted: 9 May 2019
First Online: 25 May 2019