“Energy Management: Venture to Do Something, in the Cities and in the Countryside; [Energiemanagement: Etwas Wagen, in Den Städten Und Auf Dem Land]”. gis.Business | issn : 1869-9286 23, no. 1 (January 1, 2022): 7–10. Accessed November 8, 2026. https://journal-gis.business/index.php/gisb/article/view/440.