Wang, Huiping
Zhang, Xueying
Funding for this research was provided by:
National Natural Science Foundation of China (71603202)
Shaanxi Provincial Science and Technology Department (2019KRM129)
Education Department of Shaanxi Province (19JZ048)
Xi'an Social Science Planning Fund Project (19J13)
Xi’an Soft Science Foundation (2019111813RKX002SF006-6)
Scientific Research Project of China (Xi’an) Institute for Silk Road Research (2019YA08)
Article History
Received: 15 April 2020
Accepted: 17 June 2020
First Online: 26 June 2020