{"id":"001209845","type":"book","title":"Die Abschnittsbefestigung auf der Warte in Friesen","pages":"15-29","container-title":"Jahrbuch des Colloquium Historicum Wirsbergense, 17 (1989/90","author":[{"family":"Abels","given":"Björn-Uwe 1941-"}],"issued":{"raw":"1989"}}