NIKANDER, Sven; RAHKO, Timo. Ultrastructure of granulated cells in the bile duct of reindeer. Rangifer, Tromsø, Norway, v. 10, n. 3, p. 363–367, 1990. DOI: 10.7557/2.10.3.880. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/880. Acesso em: 18 may. 2026.