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U.S. National Bureau of Standards. Nature 193, 626 (1962). https://doi.org/10.1038/193626c0
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DOI: https://doi.org/10.1038/193626c0
Nature volume 193, page 626 (1962)
U.S. National Bureau of Standards. Nature 193, 626 (1962). https://doi.org/10.1038/193626c0
Issue Date:
DOI: https://doi.org/10.1038/193626c0