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Dr. A. K. Das. Nature 192, 1238 (1961). https://doi.org/10.1038/1921238a0
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DOI: https://doi.org/10.1038/1921238a0
Nature volume 192, page 1238 (1961)
Dr. A. K. Das. Nature 192, 1238 (1961). https://doi.org/10.1038/1921238a0
Issue Date:
DOI: https://doi.org/10.1038/1921238a0