Urban expansion patterns and their driving forces based on the center of gravity-GTWR model: A case study of the Beijing-Tianjin-Hebei urban agglomeration

WANG Haijun, ZHANG Bin, LIU Yaolin, LIU Yanfang, XU Shan, ZHAO Yuntai, CHEN Yuchen, HONG Song

Journal of Geographical Sciences . 2020, (2): 297 -318 . DOI: 10.1007/s11442-020-1729-4