PÖSÖ, A. Reeta. Seasonal changes in reindeer physiology. Rangifer, Tromsø, Norway, v. 25, n. 1, p. 31–38, 2005. DOI: 10.7557/2.25.1.335. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/335. Acesso em: 3 may. 2026.