{"id":"001015762","type":"book","title":"Achtzig Jahre Altsteinzeitforschung im Emschertal","publisher":"Edition Agora","publisher-place":"Gelsenkirchen","pages":"65-68","container-title":"Ur-Geschichte im Ruhrgebiet. Festschrift Arno Heinrich","author":[{"family":"Schmitz","given":"Ralf W."}],"issued":{"raw":"1992"}}