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The International System of Units (SI), translation approved by the International Bureau of Weights and Measures of its publication, Le Système International d' Unités, prepared jointly and published independently by the National Physical Laboratory, UK, and the National Bureau of Standards, USA: National Bureau of Standards Special Publication 330, 1970, US Government Printing Office, Washington, DC 20402.
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PAUL, M. Molecular Mass. Nature 229, 142–143 (1971). https://doi.org/10.1038/229142c0
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DOI: https://doi.org/10.1038/229142c0