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Mathematics at Hull. Nature 189, 968 (1961). https://doi.org/10.1038/189968a0
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DOI: https://doi.org/10.1038/189968a0
Nature volume 189, page 968 (1961)
Mathematics at Hull. Nature 189, 968 (1961). https://doi.org/10.1038/189968a0
Issue Date:
DOI: https://doi.org/10.1038/189968a0