{"id":"001008860","type":"book","title":"Birka and Dorestad","publisher":"Stichting Promotie Archeologie","publisher-place":"Zwolle","pages":"239-242","container-title":"In discussion with the past. Archaeological studies presented to W. A. van Es","author":[{"family":"Ambrosiani","given":"Björn"}],"issued":{"raw":"1999"}}