“Stone by stone for sustainable building in existing structures; [Stein um Stein zum nachhaltigen Bauen im Bestand]”, gis.Business | issn : 1869-9286, vol. 22, no. 1, pp. 8–12, Jan. 2021, Accessed: Nov. 08, 2026. Available: https://journal-gis.business/index.php/gisb/article/view/611