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USSR
Ice and Permafrost
3
PERMAFROST
3
Snow
3
VEGETATION
3
*PERMAFROST
2
*SUBARCTIC REGIONS
2
ARCTIC REGIONS
2
ECOSYSTEMS
2
FORESTS
2
NATURAL RESOURCES
2
Soil Mechanics
2
TRANSLATIONS
2
*CONSTRUCTION
1
*ECOLOGY
1
*ENVIRONMENTAL PROTECTION
1
*FINLAND
1
*FIRST WORLD WAR
1
*GEOGRAPHY
1
*LANDING FIELDS
1
*POLAR REGIONS
1
*RUSSIA
1
*SECOND WORLD WAR
1
*SOIL MECHANICS
1
*SYMPOSIA
1
*WARFARE
1
*WINTER
1
*WINTER WARFARE
1
44TH MOTORIZED RIFLE DIVISION
1
ABSTRACTS
1
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