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Mr. P. R. Coursey. Nature 185, 429–430 (1960). https://doi.org/10.1038/185429b0
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DOI: https://doi.org/10.1038/185429b0
Nature volume 185, pages 429–430 (1960)
Mr. P. R. Coursey. Nature 185, 429–430 (1960). https://doi.org/10.1038/185429b0
Issue Date:
DOI: https://doi.org/10.1038/185429b0