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Mathematics at University College, London. Nature 201, 1168 (1964). https://doi.org/10.1038/2011168b0
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DOI: https://doi.org/10.1038/2011168b0
Nature volume 201, page 1168 (1964)
Mathematics at University College, London. Nature 201, 1168 (1964). https://doi.org/10.1038/2011168b0
Issue Date:
DOI: https://doi.org/10.1038/2011168b0