Reindl, N. J., L. C. Buoen, and T. Q. Zhang. “Twinning in muskox and the cytogenetic investigation of a freemartin”. Rangifer 13, no. 2 (December 1, 1993): 79–82. Accessed December 27, 2024. https://septentrio.uit.no/index.php/rangifer/article/view/1081.