{"id":"000471263","type":"article","title":"Grinding implements from the neolithic and recent times in desert areas in Egypt and Sudan","publisher-place":"Mainz am Rhein","pages":"359-379","container-title":"Beiträge zur allgemeinen und vergleichenden Archäologie, 9/10 (1990","author":[{"family":"Schön","given":"W."}],"issued":{"raw":"1990"}}