NILSSEN, Kjell J.; ROGNMO, Arne; BLIX, Arnoldus Schytte. Reindeer breathe less and save water in the cold. Rangifer, Tromsø, Norway, v. 10, n. 3, p. 243–247, 1990. DOI: 10.7557/2.10.3.864. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/864. Acesso em: 2 may. 2026.