Gunn, A., K. G. Poole, and J. S. Nishi. “A conceptual model for migratory tundra caribou to explain and predict why shifts in spatial fidelity of breeding cows to their calving grounds are infrequent”. Rangifer, vol. 32, no. 2, Mar. 2012, pp. 259-67, doi:10.7557/2.32.2.2274.