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Rich, V. Comecon. Nature 262, 640 (1976). https://doi.org/10.1038/262640a0
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DOI: https://doi.org/10.1038/262640a0
Nature volume 262, page 640 (1976)
Rich, V. Comecon. Nature 262, 640 (1976). https://doi.org/10.1038/262640a0
Issue Date:
DOI: https://doi.org/10.1038/262640a0