SUBTERRANEAN RIVERS + SUBTERRANEAN STREAMS (GEOMORPHOLOGY)
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BTUNDERGROUND WATERS (GEOMORPHOLOGY)
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UDC551.444.3
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Descriptor GERUNTERIRDISCHE FLÜSSE + UNTERIRDISCHE BÄCHE (GEOMORPHOLOGIE)
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Descriptor ENGSUBTERRANEAN RIVERS + SUBTERRANEAN STREAMS (GEOMORPHOLOGY)
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Descriptor FRERIVIERES SOUTERRAINES + COURS D'EAU SOUTERRAINS (GÉOMORPHOLOGIE)
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Variant GERUNTERIRDISCHE FLÜSSE (GEOMORPHOLOGIE)
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Variant GERUNTERIRDISCHE BÄCHE (GEOMORPHOLOGIE)
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Variant GERFLÜSSE/UNTERIRDISCHE FLÜSSE (GEOMORPHOLOGIE)
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Variant GERBÄCHE/UNTERIRDISCHE BÄCHE (GEOMORPHOLOGIE)
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Variant ENGSUBTERRANEAN RIVERS (GEOMORPHOLOGY)
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Variant ENGSUBTERRANEAN STREAMS (GEOMORPHOLOGY)
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Variant ENGRIVERS/SUBTERRANEAN RIVERS (GEOMORPHOLOGY)
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Variant ENGSTREAMS/SUBTERRANEAN STREAMS (GEOMORPHOLOGY)
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Variant FRECOURS D'EAU SOUTERRAINS (GÉOMORPHOLOGIE)
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Variant FRESOUTERRAINES/RIVIERES SOUTERRAINES (GÉOMORPHOLOGIE)
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Variant FRESOUTERRAINS/COURS D'EAU SOUTERRAINS (GÉOMORPHOLOGIE)