Lin, Xiaofei
Song, Shouxin
Zhai, Huaiyuan http://orcid.org/0000-0002-2240-2698
Yuan, Pengwei
Chen, Mingli
Funding for this research was provided by:
National Natural Science Foundation of China (B16A300010)
National Natural Social Science Foundation of China (13AZD088, 17CGL073)
Natural Science Foundation of Shandong Province (ZR2017BG009)
Shandong Provincial Social Science Planning and Management Office (16DGLJ10)
Article History
Received: 4 February 2019
Revised: 9 October 2019
First Online: 6 January 2020