Fuchs, Marisa, Polina Unger, Maximiliane Seitz, and Stefan Greiving. “A Process-Based Model to Evaluate Cooperation Between a function-Sharing City Alliance: The Example of the Harz Planning Region, Germany”. Raumforschung und Raumordnung | Spatial Research and Planning 82, no. 6 (December 6, 2024). Accessed August 26, 2026. https://rur.oekom.de/index.php/rur/article/view/2549.