TY - PROGRESS IN GEOGRAPHY A1 - DU Hongru, LIU Yi T1 - Progress on the Study of Oasis Cities in Arid Zone of China Y1 - 2005-03-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 69 EP - 79 VL - 24 IS - 2 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2005.02.008} N1 - 10.11820/dlkxjz.2005.02.008 ER -