Nilsson, Anna, Ingemar Olsson, and Per Lingvall. “Comparison Between Grass-Silages of Different Dry Matter Content Fed to Reindeer During Winter”. Rangifer 16, no. 1 (January 1, 1996): 21-30. Accessed December 11, 2019. https://septentrio.uit.no/index.php/rangifer/article/view/1182.