{"id":"001047702","type":"book","title":"Danish rule in west Frisia: a failed Normandy in the 9th century","publisher":"Folio-Verlag","publisher-place":"Hertingen","pages":"446-452","container-title":"Centre, region, periphery. (1) Medieval Europe Basel 2002. 1. Keynote-lectures to the conference, sections 1-3. [3rd International Conference of Medieval and Later Archaeology, Preprinted Papers","author":[{"family":"Besteman","given":"Jan"}],"issued":{"raw":"2002"}}