SPELEOLOGY (GEOMORPHOLOGY)
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BTGEOMORPHOLOGY
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UDC551.44
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Descriptor GERHÖHLENKUNDE + SPELÄOLOGIE (GEOMORPHOLOGIE)
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Descriptor ENGSPELEOLOGY (GEOMORPHOLOGY)
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Descriptor FRESPELEOLOGIE (GÉOMORPHOLOGIE)
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Variant GERHÖHLENKUNDE (GEOMORPHOLOGIE)
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Variant GERSPELAEOLOGIE (GEOMORPHOLOGIE)
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NTHISTORY OF SPELEOLOGY
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NTFISSURES + GROTTOES + CAVES + CAVERNS + CAVINGS (GEOMORPHOLOGY)
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NTSINKHOLES + SWALLOW-HOLES + POT-HOLES + DOLINES (GEOMORPHOLOGY)
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NTUNDERGROUND WATERS (GEOMORPHOLOGY)