Environmental change and human culture in the Nile Basin and northern Africa until the second Millennium B.C - Krzyżaniak, Lech; Kobusiewicz, Michał; Alexander, John Amyas; Krzyżniak, Lech (Poznań Archaeological Museum, Muzeum archeologiczne w Poznaniu, 1993)
"Proceedings of the International Symposium organized by the Archaeological Commission of the Polish Academy of Sciences, Poznán Branch, and the Poznán Archaeological Museum for the International Commission of the Later Prehistory of Northeastern Africa, Dymaczewo near Poznán, 5-10 September, 1988"–T.p. verso