{"id":"000337184","type":"book","title":"Rib insertion in phases. The type Zwammerdam shell. First building procedure 500 B.C. (?) - A.D. 1500","pages":"43-44","container-title":"Crossroads in ancient shipbuilding. Proceedings of the Sixth International Symposium on Boat and Ship Archaeology, Roskilde 1991","author":[{"family":"Weerd","given":"M.D. de"}]}