TY - JOUR A1 - Lindenbergh, R. A1 - Yang, B. A1 - Boehm, J. A1 - Rutzinger, M. A1 - Yao, W. A1 - Weinmann, M. T1 - PREFACE JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - IV-2/W4 SP - 31 EP - 33 Y1 - 2017/09/12 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/IV-2-W4/31/2017/ L1 - https://isprs-annals.copernicus.org/articles/IV-2-W4/31/2017/isprs-annals-IV-2-W4-31-2017.pdf DO - 10.5194/isprs-annals-IV-2-W4-31-2017 ER -