Balzerek, Heiko, Werner Fricke, Jürgen Heinrich, and Klaus Martin Moldenhauer. 2003. “Man-Made Flood Disaster in the Savanna Town of Gombe / NE Nigeria. The Natural Hazard of Gully Erosion Caused by Urbanization Dynamics and Their Peri-Urban Footprints”. ERDKUNDE 57 (2):94-109. https://doi.org/10.3112/erdkunde.2003.02.02.