Germer, Sonja, Oliver Bens, and Reinhard F. Hüttl. “Global Change: Challenges for Regional Water Resources”. DIE ERDE – Journal of the Geographical Society of Berlin 142, no. 1-2 (April 1, 2011): 1–2. Accessed December 22, 2024. https://die-erde.org/index.php/die-erde/article/view/39.