PERSSON, H. Neck collar retention in a Greylag Goose Anser anser population. Ornis Svecica, Lund, Sweden, v. 10, n. 3–4, p. 155–160, 2000. DOI: 10.34080/os.v10.22874. Disponível em: https://journals.lub.lu.se/os/article/view/22874. Acesso em: 23 may. 2022.