Gabi, Simone, and Alain Thierstein. “A «Regionalpark” As a Field of Action for Metropolitan Governance: A Case Study in the Zurich Glattal-Stadt”. Raumforschung und Raumordnung | Spatial Research and Planning 63, no. 1 (January 31, 2005): 21–31. Accessed August 15, 2026. https://rur.oekom.de/index.php/rur/article/view/1473.