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Rich, V. Karl Marx — PhD. Nature 293, 251 (1981). https://doi.org/10.1038/293251c0
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DOI: https://doi.org/10.1038/293251c0
Nature volume 293, page 251 (1981)
Rich, V. Karl Marx — PhD. Nature 293, 251 (1981). https://doi.org/10.1038/293251c0
Issue Date:
DOI: https://doi.org/10.1038/293251c0