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HAWKINS, T. Movement of Swifts in Summer. Nature 168, 157 (1951). https://doi.org/10.1038/168157a0
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DOI: https://doi.org/10.1038/168157a0
Nature volume 168, page 157 (1951)
HAWKINS, T. Movement of Swifts in Summer. Nature 168, 157 (1951). https://doi.org/10.1038/168157a0
Issue Date:
DOI: https://doi.org/10.1038/168157a0