“3D Forum in Lindau: Citizens, data, city models; [3D-Forum in Lindau: Bürger, Daten, Stadtmodelle]”, gis.Business | issn : 1869-9286, vol. 20, no. 1, pp. 31–33, Jan. 2019, Accessed: Nov. 08, 2026. Available: https://journal-gis.business/index.php/gisb/article/view/412