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Antarctica, geopolitics and resources
Sharma, Ishwar C., (1992)
Suomi - Finnland : Naturpotentiale und Lebensräume im hohen Norden Europas
Achenbach, Hermann, (1993)
Deep drilling
(1993)
The study object physical geography (A critical review of current concepts)
Krivolutskiy, A. Ye., (1976)