{"id":"000256178","type":"book","title":"The prehistory of southern Sudan. Approaches made before 1950","pages":"113-121","container-title":"Nubische Studien. Tagungsakten der 5. Internationalen Konferenz der International Society for Nubian Studies, Heidelberg 22.-25. September 1982","author":[{"family":"Johansen Kleppe","given":"E."}],"issued":{"raw":"1986"}}