"naturressourceudbytning" . . "fiskeri" . . . . "Scheepvaart." . . "Commerce Baltique (région) Histoire." . . "Nordseeraum" . . "Nordseeraum." . "Baltic Sea Region" . . "Nordsjön" . . "Östersjöländerna" . . "forurening" . . "Ostseeraum" . . "Ostseeraum." . "Baltikum" . . "skibsfart" . . "Commerce Mer du Nord (région) Histoire." . . "Ekonomisk historia Nordsjön." . . "North Sea Region" . . "Północne, Morze (region)" . . "markedsforhold" . . "Ekonomisk historia Östersjöländerna." . . "handel" . . "Handel." . "Navigation Mer du Nord Histoire." . . "trafikvæsen" . . . . . . . "The Baltic and the North seas"@en . "The Baltic and the North seas" . . . . . . . . . . . . . . . . . "The Baltic and the North Seas" . . . . . . . . . . . . . . . . . . . . . "Electronic books"@en . . . . . . . . . "Östersjön." . . "Navigation Baltique (mer) Histoire." . . "Norden" . . "Schifffahrt." . . "miljøskader" . . "fiskeripolitik" . . "internationale økonomiske relationer" . . "Bałtyk (region)" . . "Europa" . .