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Space: Flight of Fancy. Nature 220, 636 (1968). https://doi.org/10.1038/220636a0
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DOI: https://doi.org/10.1038/220636a0
Nature volume 220, page 636 (1968)
Space: Flight of Fancy. Nature 220, 636 (1968). https://doi.org/10.1038/220636a0
Issue Date:
DOI: https://doi.org/10.1038/220636a0