TY - JOUR A1 - Zha, Z. A1 - Jiang, J. A1 - Zhou, X. T1 - HIERARCHICAL OPTIMIZATION MODEL ON GEONETWORK JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XXXIX-B4 SP - 261 EP - 264 Y1 - 2012/07/31 PB - ISPRS SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XXXIX-B4/261/2012/ L1 - https://isprs-archives.copernicus.org/articles/XXXIX-B4/261/2012/isprsarchives-XXXIX-B4-261-2012.pdf DO - 10.5194/isprsarchives-XXXIX-B4-261-2012 ER -