Nieminen, Mauri, Kirsti Koskela, and Niilo Koivuperä. “Reindeer Mortality in Finland During the Years 1971-81”. Rangifer 2, no. 1 (May 1, 1982): 9-25. Accessed December 1, 2020. https://septentrio.uit.no/index.php/rangifer/article/view/420.