KOJOLA, Ilpo; HELLE, Timo; AIKIO, Pekka. Productivity of semi-domesticated reindeer in Finland. Rangifer, Tromsø, Norway, v. 11, n. 2, p. 53–63, 1991. DOI: 10.7557/2.11.2.978. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/978. Acesso em: 3 may. 2026.