The path evolution of export of five cities of Hexi in China's inland areas: Types, processes, characteristics and driving mechanisms
CAO Wanpeng, YANG Yongchun, SHI Kunbo, JIANG Xiaorong, WANG Peiran
GEOGRAPHICAL RESEARCH . 2020, (7): 1490 -1510 .  DOI: 10.11821/dlyj020190570