• Lovvorn, J. R., Liggins, G. A., Borstat, M. H., Calisal, S. M. & Mikkelsen, J. (2001) "Hydrodynamic drag of diving birds: effects of body size, body shape and feathers at steady speeds" J. Exp. Biol. 204(9):1547-1557
    [notes]
    http://jeb.biologists.org/content/204/9/1547


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