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U.S. National Science Foundation: Dr. E. A. Eckhardt. Nature 180, 169 (1957). https://doi.org/10.1038/180169c0
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DOI: https://doi.org/10.1038/180169c0
Nature volume 180, page 169 (1957)
U.S. National Science Foundation: Dr. E. A. Eckhardt. Nature 180, 169 (1957). https://doi.org/10.1038/180169c0
Issue Date:
DOI: https://doi.org/10.1038/180169c0