TY - JOUR A1 - Wong, K. A1 - Ellul, C. T1 - USER REQUIREMENTS GATHERING FOR A NATIONAL 3D MAPPING PRODUCT IN THE UNITED KINGDOM JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - IV-4/W6 SP - 89 EP - 96 Y1 - 2018/09/12 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/IV-4-W6/89/2018/ L1 - https://isprs-annals.copernicus.org/articles/IV-4-W6/89/2018/isprs-annals-IV-4-W6-89-2018.pdf DO - 10.5194/isprs-annals-IV-4-W6-89-2018 ER -