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Poland steps up research into mining safety. Nature 282, 770 (1979). https://doi.org/10.1038/282770a0
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DOI: https://doi.org/10.1038/282770a0
Nature volume 282, page 770 (1979)
Poland steps up research into mining safety. Nature 282, 770 (1979). https://doi.org/10.1038/282770a0
Issue Date:
DOI: https://doi.org/10.1038/282770a0