{"id":"001007318","type":"book","title":"Wehrbauten des Mittelalters in Skandinavien und dem Gebiet südlich der Ostsee","publisher":"Almqvist+Wiksell","publisher-place":"Stockholm","pages":"219-291","container-title":"The study of medieval archaeology. European Symposium for Teachers of Medieval Archaeology, Lund 11-15 june 1990","author":[{"family":"Ericsson","given":"Ingolf."}],"issued":{"raw":"1993"}}