{"id":"001055243","type":"book","title":"Civilization versus Barbarians? Fortification techniques and politics in the Carolingian and Ottonian borderlands","publisher":"Brepols","publisher-place":"Turnhout","pages":"23-34","container-title":"Borders, barriers, and ethnogenesis : Frontiers in Late Antiquity and the Middle Ages","author":[{"family":"Henning","given":"Joachim"}],"issued":{"raw":"2005"}}