ÅHMAN, Gustaf; ÅHMAN, Birgitta. Effects of forest fertilization on nitrate and crude protein content in some important reindeer forage species. Rangifer, Tromsø, Norway, v. 4, n. 1, p. 43–53, 1984. DOI: 10.7557/2.4.1.491. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/491. Acesso em: 9 may. 2026.