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| NON posseduto | |
| Autore principale: | Hansteen, Christopher, 1784-1873.
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| Titolo: | On the amplitude of the daily variation of the magnetic dip in Christiania betwen 10 a.m., and an hour before sunset, from 1844 to 1859 / by Professor Hansteen ; read before the Royal Irish Academy, May 27, 1861. |
| In: |  Dublin quarterly journal of science Vol. 1 (1861), p. 364-369 |
| 000000172984 |
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