STOUTJESDIJK, Flip. Birds in the cold: The effects of plumage structure and environment on operative temperature, shown by spherical models. Ornis Svecica, Lund, Sweden, v. 13, n. 4, p. 123–136, 2003. DOI: 10.34080/os.v13.22804. Disponível em: https://journals.lub.lu.se/os/article/view/22804. Acesso em: 5 may. 2024.