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U.S. National Bureau of Standards : Dr. J. A. Simpson. Nature 194, 818 (1962). https://doi.org/10.1038/194818b0
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DOI: https://doi.org/10.1038/194818b0
Nature volume 194, page 818 (1962)
U.S. National Bureau of Standards : Dr. J. A. Simpson. Nature 194, 818 (1962). https://doi.org/10.1038/194818b0
Issue Date:
DOI: https://doi.org/10.1038/194818b0