{"id":"001064729","type":"book","title":"Danes and Swedes in written and archaeological sources at the end of 9th century","publisher":"The Viking Ship Museum, Roskilde","publisher-place":"Roskilde","pages":"58-71","container-title":"Wulfstan's voyage : The Baltic Sea region in the early Viking Age as seen from shipboard","author":[{"family":"Duczko","given":"Władysław"}],"issued":{"raw":"2009"}}