Regulation of Heat Exchange across the Hornbill Beak: Functional Similarities with Toucans?Published in:PLoS ONE, 2016, v. 11, n. 5, p. 1, doi. 10.1371/journal.pone.0154768By:van de Ven, T. M. F. N.;Martin, R. O.;Vink, T. J. F.;McKechnie, A. E.;Cunningham, S. J.Publication type:Article