TY - JOUR A1 - Xavier, E. M. A. A1 - Ariza-López, F. J. A1 - Ureña-Cámara, M. A. T1 - WEB SERVICE FOR POSITIONAL QUALITY ASSESSMENT: THE WPS TIER JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - II-3/W5 SP - 257 EP - 262 Y1 - 2015/08/20 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/II-3-W5/257/2015/ L1 - https://isprs-annals.copernicus.org/articles/II-3-W5/257/2015/isprsannals-II-3-W5-257-2015.pdf DO - 10.5194/isprsannals-II-3-W5-257-2015 ER -