BORGSTRÖM, E. On the breeding ecology of the Goldeneye Bucephala clangula in middle Värmland. Ornis Svecica, Lund, Sweden, v. 16, n. 4, p. 235–239, 2006. DOI: 10.34080/os.v16.22709. Disponível em: https://journals.lub.lu.se/os/article/view/22709. Acesso em: 6 jul. 2022.