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The Physikalisch-Technische Anstalt. Nature 167, 61 (1951). https://doi.org/10.1038/167061a0
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DOI: https://doi.org/10.1038/167061a0
Nature volume 167, page 61 (1951)
The Physikalisch-Technische Anstalt. Nature 167, 61 (1951). https://doi.org/10.1038/167061a0
Issue Date:
DOI: https://doi.org/10.1038/167061a0