Heggberget, Thrine Moen, Eldar Gaare, and John P. Ball. “Reindeer (Rangifer tarandus) and climate change: Importance of winter forage”. Rangifer 22, no. 1 (June 1, 2002): 13–31. Accessed December 20, 2024. https://septentrio.uit.no/index.php/rangifer/article/view/388.