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Primitive Astronomy. Nature 169, 443 (1952). https://doi.org/10.1038/169443c0
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DOI: https://doi.org/10.1038/169443c0
Nature volume 169, page 443 (1952)
Primitive Astronomy. Nature 169, 443 (1952). https://doi.org/10.1038/169443c0
Issue Date:
DOI: https://doi.org/10.1038/169443c0