Merz, Christoph, and Asaf Pekdeger. “Anthropogenic Changes in the Landscape Hydrology of the Berlin-Brandenburg Region”. DIE ERDE – Journal of the Geographical Society of Berlin, vol. 142, no. 1-2, Apr. 2011, pp. 21-39, https://die-erde.org/index.php/die-erde/article/view/41.