Wittmer, Heiko U., McLellan, Bruce N., Seip, Dale R., Young, James A., Kinley, Trevor A., Watts, Glen S., and Hamilton, Dennis, 2005, Population dynamics of the endangered mountain ecotype of woodland caribou (Rangifer tarandus caribou) in British Columbia, Canada: Canadian journal of zoology, v. 83, no. 3, p. 407-418.