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DOUGLAS, N. SETI. Nature 340, 260 (1989). https://doi.org/10.1038/340260e0
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DOI: https://doi.org/10.1038/340260e0
Nature volume 340, page 260 (1989)
DOUGLAS, N. SETI. Nature 340, 260 (1989). https://doi.org/10.1038/340260e0
Issue Date:
DOI: https://doi.org/10.1038/340260e0