HOLST, Bengt. International Studbook for Muskoxen in Captivity. Rangifer, Tromsø, Norway, v. 11, n. 2, p. 83–84, 1991. DOI: 10.7557/2.11.2.974. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/974. Acesso em: 19 apr. 2026.