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Nature. Nature 252, 517 (1974). https://doi.org/10.1038/252517b0
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DOI: https://doi.org/10.1038/252517b0
Nature volume 252, page 517 (1974)
Nature. Nature 252, 517 (1974). https://doi.org/10.1038/252517b0
Issue Date:
DOI: https://doi.org/10.1038/252517b0