ENNS (CENTRAL EUROPEAN RIVERS)
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BTUPPER MIDDLE DANUBE, PASSAU TO BUDAPEST (CENTRAL EUROPEAN RIVERS)
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UDC(282.243.732)
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Descriptor GERENNS (MITTELEUROPÄISCHE FLÜSSE)
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Descriptor ENGENNS (CENTRAL EUROPEAN RIVERS)
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Descriptor FREENNS (RIVIÈRES DE L'EUROPE CENTRALE)