HEISKARI, Ulla; NIEMINEN, Mauri. Maintaining reindeer on roughage diet during winter. Rangifer, Tromsø, Norway, v. 10, n. 5, p. 14, 1990. DOI: 10.7557/2.10.5.938. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/938. Acesso em: 22 apr. 2026.