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Spectral Types of Southern Stars. Nature 179, 348 (1957). https://doi.org/10.1038/179348c0
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DOI: https://doi.org/10.1038/179348c0
Nature volume 179, page 348 (1957)
Spectral Types of Southern Stars. Nature 179, 348 (1957). https://doi.org/10.1038/179348c0
Issue Date:
DOI: https://doi.org/10.1038/179348c0