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Another Place for Digging. Nature 222, 1117 (1969). https://doi.org/10.1038/2221117a0
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DOI: https://doi.org/10.1038/2221117a0
Nature volume 222, page 1117 (1969)
Another Place for Digging. Nature 222, 1117 (1969). https://doi.org/10.1038/2221117a0
Issue Date:
DOI: https://doi.org/10.1038/2221117a0