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HAWKING, F. Dr. A. J. Ewins, F.R.S.. Nature 181, 310–311 (1958). https://doi.org/10.1038/181310a0
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DOI: https://doi.org/10.1038/181310a0
Nature volume 181, pages 310–311 (1958)
HAWKING, F. Dr. A. J. Ewins, F.R.S.. Nature 181, 310–311 (1958). https://doi.org/10.1038/181310a0
Issue Date:
DOI: https://doi.org/10.1038/181310a0