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National Science Foundation International Science Activities Office. Nature 193, 121 (1962). https://doi.org/10.1038/193121a0
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DOI: https://doi.org/10.1038/193121a0
Nature volume 193, page 121 (1962)
National Science Foundation International Science Activities Office. Nature 193, 121 (1962). https://doi.org/10.1038/193121a0
Issue date:
DOI: https://doi.org/10.1038/193121a0