![Results of aruoral [i.e. auroral] observations at Tromsø and Oslo from the four winters 1953-54 to 1956-57](/assets/img/no-cover.svg)
Results of aruoral [i.e. auroral] observations at Tromsø and Oslo from the four winters 1953-54 to 1956-57
by Lars Vegard
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First published: 1958
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