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Kettlewell, H., Berry, R. Gene flow in a cline Amathes glareosa Esp. and its melanic F. Edda Staud. (Lep.) in Shetland. Heredity 24, 1–14 (1969). https://doi.org/10.1038/hdy.1969.1
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DOI: https://doi.org/10.1038/hdy.1969.1
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