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City and Guilds of London Institute. Nature 176, 431 (1955). https://doi.org/10.1038/176431a0
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DOI: https://doi.org/10.1038/176431a0
Nature volume 176, page 431 (1955)
City and Guilds of London Institute. Nature 176, 431 (1955). https://doi.org/10.1038/176431a0
Issue Date:
DOI: https://doi.org/10.1038/176431a0