TY - PROGRESS IN GEOGRAPHY A1 - CHEN Ruishan, ZHAO Zhiqiang, XU Di, CHEN Yi T1 - Progress of research on sustainable development index for cities and urban agglomerations Y1 - 2021-03-28 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 61 EP - 72 VL - 40 IS - 1 UR - {https://www.progressingeography.com/EN/10.18306/dlkxjz.2021.01.006} N1 - 10.18306/dlkxjz.2021.01.006 ER -