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Radcliffe Observatory, Pretoria. Nature 166, 674 (1950). https://doi.org/10.1038/166674a0
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DOI: https://doi.org/10.1038/166674a0
Nature volume 166, page 674 (1950)
Radcliffe Observatory, Pretoria. Nature 166, 674 (1950). https://doi.org/10.1038/166674a0
Issue Date:
DOI: https://doi.org/10.1038/166674a0