Eitel, Bernhard, and Joachim Eberle. “Kastanozems in the Otjiwarongo Region (Namibia): Pedogenesis, Associated Soils, Evidence for Landscape Degradation”. ERDKUNDE 55, no. 1 (March 31, 2001): 21–31. Accessed October 7, 2024. https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/2465.