{"id":"001405268","type":"book","title":"Holocene vegetation of the Eastern Sahara","pages":"153-169","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":"Neumann","given":"K."}],"issued":{"raw":"1993"}}