Wisła w dziejach Polski

by Gierszewski, Stanisław
Published: Gdańsk | Wydaw. Morskie | 1982

Die Frage der Internationalisierung der Weichsel

by Volz, Jochim
Published: Danzig | Danziger Verl.-Ges. | 1932

Baltic connections archival guide to the maritime relations of the countries around the Baltic Sea (including the Netherlands) 1450 - 1800

Published: Leiden [u.a.] | Brill | 2007-