ABRAHAM, Kenneth F.; THOMPSON, John E. Defining the Pen Islands Caribou Herd of southern Hudson Bay. Rangifer, Tromsø, Norway, v. 18, n. 5, p. 33–40, 1998. DOI: 10.7557/2.18.5.1439. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/1439. Acesso em: 25 may. 2026.