Lenvik, Dag, Esben Bø, and Anders Fjellheim. “Relationship between the weight of reindeer calves in autumn and their mother’s age and weight in the previous spring”. Rangifer 8, no. 1 (June 1, 1988): 20–24. Accessed June 7, 2025. https://new.eludamos.org/index.php/rangifer/article/view/733.