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Royal Greenwich Observatory: Annual Report. Nature 168, 418–419 (1951). https://doi.org/10.1038/168418a0
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DOI: https://doi.org/10.1038/168418a0
Nature volume 168, pages 418–419 (1951)
Royal Greenwich Observatory: Annual Report. Nature 168, 418–419 (1951). https://doi.org/10.1038/168418a0
Issue Date:
DOI: https://doi.org/10.1038/168418a0