KLEIN, David R. Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology. Rangifer, Tromsø, Norway, v. 10, n. 3, p. 123–130, 1990. DOI: 10.7557/2.10.3.841. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/841. Acesso em: 3 may. 2026.