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Cheerful Aslib. Nature 219, 553–554 (1968). https://doi.org/10.1038/219553b0
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DOI: https://doi.org/10.1038/219553b0
Nature volume 219, pages 553–554 (1968)
Cheerful Aslib. Nature 219, 553–554 (1968). https://doi.org/10.1038/219553b0
Issue Date:
DOI: https://doi.org/10.1038/219553b0