Staaland, H., H. Bjørnstad, Øyvind Pedersen, and K. Hove. “Radiostrontium, radiocesium and stable mineral composition of bones of domestic reindeer from Vågå, Norway”. Rangifer, vol. 11, no. 1, Oct. 1991, pp. 17-22, doi:10.7557/2.11.1.969.