POLAR REGIONS + COLD REGIONS (BIOLOGY, ECOLOGY)
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BTBIOGEOGRAPHY
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BTCOLD REGIONS + POLAR REGIONS + FRIGID REGIONS (CLIMATIC ZONES)
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UDC574.9(211)
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Descriptor GERPOLARZONEN + KALTE ZONEN (BIOLOGIE, ÖKOLOGIE)
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Descriptor ENGPOLAR REGIONS + COLD REGIONS (BIOLOGY, ECOLOGY)
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Descriptor FRERÉGIONS POLAIRES + RÉGIONS FROIDES (BIOLOGIE, ÉCOLOGIE)
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Variant GERPOLARZONEN (BIOLOGIE, ÖKOLOGIE)
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Variant GERKALTE ZONEN (BIOLOGIE, ÖKOLOGIE)
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Variant GERPOLARBIOLOGIE
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Variant GERPOLARÖKOLOGIE
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Variant GERBOREALE ÖKOLOGIE
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Variant GERBIOLOGIE/POLARBIOLOGIE, BOREALE BIOLOGIE
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Variant GERÖKOLOGIE/POLARÖKOLOGIE, BOREALE ÖKOLOGIE
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Variant GERPOLARGEBIETE (BIOLOGIE, ÖKOLOGIE)
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Variant ENGPOLAR REGIONS (BIOLOGY, ECOLOGY)
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Variant ENGCOLD REGIONS (BIOLOGY, ECOLOGY)
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Variant ENGPOLAR BIOLOGY
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Variant ENGPOLAR ECOLOGY
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Variant ENGBOREAL ECOLOGY
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Variant ENGECOLOGY/POLAR ECOLOGY, BOREAL ECOLOGY
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Variant ENGBIOLOGY/POLAR BIOLOGY, BOREAL BIOLOGY
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Variant FRERÉGIONS FROIDES (BIOLOGIE, ÉCOLOGIE)
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Variant FRERÉGIONS POLAIRES (BIOLOGIE, ÉCOLOGIE)
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Variant FREZONE POLAIRE (BIOLOGIE, ÉCOLOGIE)
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Variant FREÉCOLOGIE POLAIRE
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Variant FREBIOLOGIE POLAIRE
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NTPOLAR VEGETATION (PLANT SOCIETIES)
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NTPOLAR VEGETATION (PLANT ECOLOGY)
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NTTUNDRA, TAIGA, BOREAL FORESTS (BIOLOGY, ECOLOGY)
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RTPOLAR AND BOREAL REGIONS (NATURE CONSERVATION)