Han, Chaoliang
Zhang, Qi
Funding for this research was provided by:
China National Social Science Foundation Project (19CJY047)
Heilongjiang Philosophy and Social Science Research Planning Project (18JYC259)
Article History
Received: 29 February 2020
Accepted: 7 May 2020
First Online: 23 May 2020
Compliance with ethical standards
:
: The authors have no competing interests.