Roggenkamp, Thomas, and Jürgen Herget. “Reconstructing Peak Discharges of Historic Floods of the River Ahr, Germany”. ERDKUNDE 68, no. 1 (March 31, 2014): 49–59. Accessed December 13, 2024. https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/2741.