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Astronomical and Nautical Almanacs. Nature 192, 1240 (1961). https://doi.org/10.1038/1921240c0
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DOI: https://doi.org/10.1038/1921240c0
Nature volume 192, page 1240 (1961)
Astronomical and Nautical Almanacs. Nature 192, 1240 (1961). https://doi.org/10.1038/1921240c0
Issue Date:
DOI: https://doi.org/10.1038/1921240c0