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4Bi︠u︡lletenʹ Arkticheskogo instituta = Bulletin of the Arctic Institute.Бюллетень Арктического института = Bulletin of the Arctic Institute.Published 1931Journal
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6Published 1976Conference Proceeding Book
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8Book
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13by Van Everdingen, R. O.Available online / Disponible en ligne
Published 1979
Government Document Book -
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