SWANSON, J. D.; BARKER, M. H. W. Assessment of Alaska reindeer populations and range conditions. Rangifer, Tromsø, Norway, v. 12, n. 1, p. 33–43, 1992. DOI: 10.7557/2.12.1.1023. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/1023. Acesso em: 3 may. 2026.