BIRS (CENTRAL EUROPEAN RIVERS)
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BTSUPERIOR RHINE, LAKE CONSTANCE TO BASLE (CENTRAL EUROPEAN RIVERS)
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UDC(282.243.140*BIRS)
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Descriptor GERBIRS (MITTELEUROPÄISCHE FLÜSSE)
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Descriptor ENGBIRS (CENTRAL EUROPEAN RIVERS)
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Descriptor FREBIRSE (RIVIÈRES DE L'EUROPE CENTRALE)
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NTTABEILLON (CENTRAL EUROPEAN RIVERS)