{"id":"001405267","type":"book","title":"Sahel in Egypt","pages":"213-223","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":"Kuper","given":"Rudolph"}],"issued":{"raw":"1993"}}