{"id":"001186371","type":"book","title":"Ships and harbours in the Middle Ages, on Lolland-Falster","publisher":"Nationalmuseets Marinarkaeologiske Forskningscenter","pages":"7-9","container-title":"Maritime Archaeology Newsletter from Roskilde, 1 (1993","author":[{"family":"Bill","given":"Jan"}],"issued":{"raw":"1993"}}