{"id":"000335799","type":"book","title":"The Gash Group of the eastern Sudan. An outline","pages":"439-448","container-title":"Environmental change and human culture in the Nile Basin and Northern Africa until the second millennium B.C. Proceedings of the international symposium, Dymaczewo near Poznań 5-10 September 1988","author":[{"family":"Fattovich","given":"R."}]}