TY - PROGRESS IN GEOGRAPHY A1 - Dianzhi SUI, Xinyue YE, Tian GAN T1 - Open GIS for big dataļ¼šopportunities and impediments Y1 - 2014-06-25 00:00:00.0 JF - PROGRESS IN GEOGRAPHY JO - PROGRESS IN GEOGRAPHY SP - 723 EP - 737 VL - 33 IS - 6 UR - {https://www.progressingeography.com/EN/10.11820/dlkxjz.2014.06.001} N1 - 10.11820/dlkxjz.2014.06.001 ER -