Varo, Mikko, and Hannu Varo. “The Milk Production of Reindeer Cows and the Share of Milk in the Growth of Reindeer Calves”. Agricultural and Food Science 43, no. 1 (January 1, 1971): 1–10. Accessed June 29, 2024. https://journal.fi/afs/article/view/71778.