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Royal Greenwich Observatory: Report For 1956–57. Nature 180, 586 (1957). https://doi.org/10.1038/180586a0
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DOI: https://doi.org/10.1038/180586a0
Nature volume 180, page 586 (1957)
Royal Greenwich Observatory: Report For 1956–57. Nature 180, 586 (1957). https://doi.org/10.1038/180586a0
Issue Date:
DOI: https://doi.org/10.1038/180586a0