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The Institution of Mining Engineers. Nature 184, 1845 (1959). https://doi.org/10.1038/1841845b0
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DOI: https://doi.org/10.1038/1841845b0
Nature volume 184, page 1845 (1959)
The Institution of Mining Engineers. Nature 184, 1845 (1959). https://doi.org/10.1038/1841845b0
Issue Date:
DOI: https://doi.org/10.1038/1841845b0