{"id":"000985377","type":"book","title":"Sachsen und Polen im 12","publisher":"Hirmer","publisher-place":"München","pages":"136-143","container-title":"Heinrich der Löwe und seine Zeit : Herrschaft und Repräsentation der Welfen 1125-1235. 2. Essays","author":[{"family":"Derwich","given":"Marek"}],"issued":{"raw":"1995"}}