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Institute of Mathematics and its Applications. Nature 206, 141 (1965). https://doi.org/10.1038/206141a0
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DOI: https://doi.org/10.1038/206141a0
Nature volume 206, page 141 (1965)
Institute of Mathematics and its Applications. Nature 206, 141 (1965). https://doi.org/10.1038/206141a0
Issue Date:
DOI: https://doi.org/10.1038/206141a0