ÅHMAN, Birgitta; ÅHMAN, Gustaf. Levels of 137Cs in reindeer bulls in July/August and September and the effect of early slaughter. Rangifer, Tromsø, Norway, v. 10, n. 5, p. 34–36, 1990. DOI: 10.7557/2.10.5.956. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/956. Acesso em: 25 may. 2026.