The IVS 90 information system for inland navigation
Brolsma, J.U. (1991). The IVS 90 information system for inland navigation. Bull. Perm. Int. Assoc. Navig. Congr. 74: 71-82
In: Bulletin of the Permanent International Association of Navigation Congresses = Bulletin de l'Association Internationale Permanente des Congrès de Navigation. PIANC/PIANC = AIPCN: Bruxelles. ISSN 0374-1001, more
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