Ma, Yongliang http://orcid.org/0000-0002-8081-8907
Funding for this research was provided by:
Soft Science Research Projects of Henan Province (NO.172400410614, NO.172400410629)
Government Decision Making research Projects of Henan Province (NO. 2016BC330)
Article History
Received: 24 September 2017
Revised: 2 December 2017
Accepted: 6 December 2017
First Online: 9 December 2017