Heiskari, Ulla, and Mauri Nieminen. “Effects of Artificial Feeding on the Body Weight, Nutritional Status and Rumen Function in Reindeer”. Rangifer 6, no. 1-App (June 1, 1986): 110. Accessed September 24, 2021. https://septentrio.uit.no/index.php/rangifer/article/view/626.