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PENNYCUICK, K. Operational Research. Nature 180, 1087–1088 (1957). https://doi.org/10.1038/1801087a0
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DOI: https://doi.org/10.1038/1801087a0
Nature volume 180, pages 1087–1088 (1957)
PENNYCUICK, K. Operational Research. Nature 180, 1087–1088 (1957). https://doi.org/10.1038/1801087a0
Issue Date:
DOI: https://doi.org/10.1038/1801087a0