{"id":"001283223","type":"book","title":"Die stauferzeitlichen Befestigungsgräben in Ulm, Grünhofgasse 1-3","pages":"214-218","container-title":"Archäologische Ausgrabungen in Baden-Württemberg, 2007 (2007","author":[{"family":"Thoma","given":"Martin."}],"issued":{"raw":"2007"}}