{"id":"001209807","type":"book","title":"Eine frühmittelalterliche Wallburg in der Niederlausitz bei Raddusch, Kreis Calau","pages":"60-67","container-title":"Archäologische Berichte aus Mecklenburg-Vorpommern, 1 (1994","author":[{"family":"Ullrich","given":"Michael."}],"issued":{"raw":"1994"}}