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THE EARTH'S MAIN MAGNETIC FIELD—EPOCH 1955 |
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| Authors: | H. F. Finch B. R. Leaton |
| Affiliation: | Royal Greenwich Observatory, Herstmonceux Castle, Sussex, 1956 August 31. |
| Abstract: | Summary. A brief account of the material employed in the preparation of the Admiralty world charts for epoch 1955 |
| Keywords: | |