Xu, Jianzhong
Yan, Fu
Funding for this research was provided by:
National Social Science Foundation of China (16BJY078)
Soft Science Foundation of Heilongjiang Province (GC16D102)
Key Program of Economic and Social of Heilongjiang Province (KY10900170004)
Philosophy and Social Science Research Planning Program of Heilongjiang Province (17JYH49)
Article History
Received: 25 May 2018
Accepted: 29 August 2018
First Online: 18 September 2018