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Our Astronomical Column. Nature 112, 520 (1923). https://doi.org/10.1038/112520a0
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DOI: https://doi.org/10.1038/112520a0
Nature volume 112, page 520 (1923)
Our Astronomical Column. Nature 112, 520 (1923). https://doi.org/10.1038/112520a0
Issue Date:
DOI: https://doi.org/10.1038/112520a0