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ANTARCTIC REGIONS
GLACIERS
Ice and Permafrost
Snow
4
(*ICE
3
(*SNOW
3
ALASKA
3
FREEZING
3
Information Science
3
(*PERMAFROST
2
*ABSTRACTS)
2
*BIBLIOGRAPHIES)
2
ARCTIC REGIONS
2
CONSTRUCTION
2
FRICTION
2
FROST HEAVE
2
GEOLOGY
2
MECHANICAL PROPERTIES
2
ROADS
2
SCIENTIFIC RESEARCH)
2
SEA ICE
2
SOILS
2
USSR
2
WATER
2
*BLACK SEA
1
*HYDROGRAPHY
1
*Post-Cromerian rise
1
*SEA LEVEL
1
ABSTRACTS
1
AGRICULTURE
1
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