{"id":"001055246","type":"book","title":"Moving earth and making difference: dikes and frontiers in early medieval Bulgaria","publisher":"Brepols","publisher-place":"Turnhout","pages":"59-90","container-title":"Borders, barriers, and ethnogenesis : Frontiers in Late Antiquity and the Middle Ages","author":[{"family":"Squatriti","given":"Paolo"}],"issued":{"raw":"2005"}}