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envir
4
geo
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arctic basin
2
archi
1
arctic
1
civilization
1
digital television complex
1
drifting station «north pole»
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f. norris
1
history of american literature
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ice age
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ice concentration
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ice island
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ice shelf
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individualism
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litt
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markham
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masculinity
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naturalism
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nature
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nuclear icebreaker «50 let pobedy»
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sea ice concentration
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sea ice thickness
1
ship observations
1
shipborne sea-ice observations
1
socio
1
the turn of the centuries
1
the war between the sexes
1
Арктика
1
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