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Communications: Post Office Receded. Nature 219, 1094 (1968). https://doi.org/10.1038/2191094a0
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DOI: https://doi.org/10.1038/2191094a0
Nature volume 219, page 1094 (1968)
Communications: Post Office Receded. Nature 219, 1094 (1968). https://doi.org/10.1038/2191094a0
Issue Date:
DOI: https://doi.org/10.1038/2191094a0