Analysis on regional spatial difference of railway transportation service: a case study of Jiangsu Provina
WU Qinshu, ZHU Yuexia, ZHAO Zhuowen, ZHANG Shizhi
Bulletin of Surveying and Mapping . 2021, (5): 116 -119 .  DOI: 10.13474/j.cnki.11-2246.2021.0154