{"id":"001013467","type":"book","title":"Concepts of realm and frontiers from late antiquity to the early Middle Ages: some preliminary remarks","publisher":"Brill","publisher-place":"Leiden/Boston/Köln","pages":"73-82","container-title":"The transformation of frontiers : From Late Antiquity to the Carolingians","author":[{"family":"Goetz","given":"Hans-Werner."}],"issued":{"raw":"2001"}}