{"id":"000997374","type":"book","title":"Off-shore defensive works in Denmark AD 200-1300","publisher":"Centre de Recherche Archéologique Médiévales","publisher-place":"Caen","pages":"149-152","container-title":"Château Gaillard. 18. Études de castellologie médiévale. Actes du Colloque International tenu à Gilleleje (Danemark), 24-30 août 1996","author":[{"family":"Jørgensen","given":"Anne Nørgård."}],"issued":{"raw":"1998"}}