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Nature Protection in U.S.S.R.. Nature 185, 580 (1960). https://doi.org/10.1038/185580c0
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DOI: https://doi.org/10.1038/185580c0
Nature volume 185, page 580 (1960)
Nature Protection in U.S.S.R.. Nature 185, 580 (1960). https://doi.org/10.1038/185580c0
Issue Date:
DOI: https://doi.org/10.1038/185580c0