Ropstad, E.; Lenvik, D.; Bø, E.; Fjellheim, M. M.; Romsås, K. B. Ovarian Function and Pregnancy Rates in Reindeer Calves [Rangifer Tarandus) in Southern Norway. Ran 1990, 10 (5), 31. https://doi.org/10.7557/2.10.5.954.