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Social and Economic Research. Nature 178, 1332–1333 (1956). https://doi.org/10.1038/1781332b0
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DOI: https://doi.org/10.1038/1781332b0
Nature volume 178, pages 1332–1333 (1956)
Social and Economic Research. Nature 178, 1332–1333 (1956). https://doi.org/10.1038/1781332b0
Issue Date:
DOI: https://doi.org/10.1038/1781332b0