TY - JOUR A1 - Liang, H. J. A1 - Wang, H. A1 - Cui, T. J. A1 - Guo, J. F. T1 - EXPRESSION AND ORGANIZATION OF GEOGRAPHIC SPATIAL RELATIONS BASED ON TOPIC MAPS JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLII-2/W7 SP - 1257 EP - 1261 Y1 - 2017/09/14 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLII-2-W7/1257/2017/ L1 - https://isprs-archives.copernicus.org/articles/XLII-2-W7/1257/2017/isprs-archives-XLII-2-W7-1257-2017.pdf DO - 10.5194/isprs-archives-XLII-2-W7-1257-2017 ER -