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Nyssen, Jan; Frankl, Amaury; Haile, Mitiku; Hurni, Hans; Descheemaeker, Katrien; Crummey, Donald; Ritler, Alfons; Portner, Brigitte; Nievergelt, Bernhard; Moeyersons, Jan; Munro, Neil; Deckers, Jozef; Billi, Paolo; Poesen, Jean (2014). Environmental conditions and human drivers for changes to north Ethiopian mountain landscapes over 145 years. Science of the total environment, 485-486, pp. 164-179. Elsevier 10.1016/j.scitotenv.2014.03.052
Kohler, Thomas; Hurni, Hans (2022). Landscape Change, Land Degradation, and Sustainable Land Management in the Central Highlands of Eritrea. In: Billi, Paolo (ed.) Landscapes and Landforms of the Horn of Africa. World Geomorphological Landscapes (pp. 209-222). Cham: Springer International Publishing 10.1007/978-3-031-05487-7_8
Hurni, Hans (2015). Paleoglaciated landscapes in Simen and other high-mountain areas of Ethiopia. In: Billi, Paolo (ed.) Landscapes and landforms of Ethiopia (pp. 139-146). Dordrecht, Netherlands: Springer 10.1007/978-94-017-8026-1_6
Nyssen, Jan; Crummey, Donald; Munro, Neil; Haile, Mitiku; Poesen, Jean; Frank, Amaury; Hurni, Hans; Descheemaeker, K; Ritler, Alfons; Nievergelt, Bernhard; Moeyersons, Jan; Deckers, Jozef; Billi, Paolo (2009). Land Degradation and Resilience in the North Ethiopian Highlands as evidenced by Historical Photographs. In: 17th International Conference of Ethiopian Studies. Addis Abeba, Ethiopia.
