Heiland, Peter, and Klaus Dapp. “The Contribution of Spatial Planning to Advances in Flood Prevention: National and Transnational, Planning-Based Approaches Illustrated With Reference to the Catchment Areas of the Rivers Rhine and Order”. Raumforschung und Raumordnung | Spatial Research and Planning 59, no. 5-6 (September 30, 2001): 337–350. Accessed May 6, 2024. https://rur.oekom.de/index.php/rur/article/view/1447.