Nieminen, M., H. Norberg, and V. Maijala. “Mortality and Survival of Semi-Domesticated Reindeer (Rangifer Tarandus Tarandus L.) Calves in Northern Finland”. Rangifer, vol. 31, no. 1, Apr. 2011, pp. 71-84, doi:10.7557/2.31.1.2029.