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U.S. Expenditure on Research and Development for 1957. Nature 184, 1022 (1959). https://doi.org/10.1038/1841022d0
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DOI: https://doi.org/10.1038/1841022d0
Nature volume 184, page 1022 (1959)
U.S. Expenditure on Research and Development for 1957. Nature 184, 1022 (1959). https://doi.org/10.1038/1841022d0
Issue Date:
DOI: https://doi.org/10.1038/1841022d0