TY - PROGRESS IN GEOGRAPHY A1 - SHI Peiji, WANG Zujing, LI Wei T1 - Study of the Urban Tourism Hinterland Based on Road Networks in Gansu Province Y1 - 2012-04-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 510 EP - 517 VL - 31 IS - 4 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2012.04.015} N1 - 10.11820/dlkxjz.2012.04.015 ER -