HEARD, Douglas C.; WILLIAMS, T. Mark. Ice and mineral licks used by caribou in winter. Rangifer, Tromsø, Norway, v. 10, n. 3, p. 203–206, 1990. DOI: 10.7557/2.10.3.857. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/857. Acesso em: 6 may. 2026.