BIRSIG (CENTRAL EUROPEAN RIVERS)
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BTSUPERIOR RHINE, LAKE CONSTANCE TO BASLE (CENTRAL EUROPEAN RIVERS)
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UDC(282.243.140*BIRSIG)
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Descriptor GERBIRSIG (MITTELEUROPÄISCHE FLÜSSE)
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Descriptor ENGBIRSIG (CENTRAL EUROPEAN RIVERS)
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Descriptor FREBIRSIG (RIVIÈRES DE L'EUROPE CENTRALE)