TY - JOUR A1 - Yi, Y. G. A1 - Liu, H. P. A1 - Liu, X. P. T1 - Deepen the GIS spatial analysis theory studying through the gradual process of practice JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-6 SP - 119 EP - 123 Y1 - 2014/04/23 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-6/119/2014/ L1 - https://isprs-archives.copernicus.org/articles/XL-6/119/2014/isprsarchives-XL-6-119-2014.pdf DO - 10.5194/isprsarchives-XL-6-119-2014 ER -