KLEIN, David R. Arctic ungulates at the northern edge of terrestrial life. Rangifer, Tromsø, Norway, v. 16, n. 2, p. 51–56, 1996. DOI: 10.7557/2.16.2.1197. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/1197. Acesso em: 3 may. 2026.