Valkenburg, P., Tobey, R. W., Tobey, R. W., Dale, B. W., Dale, B. W., Scotton, B. D., Scotton, B. D., Ver Hoef, J. M., & Ver Hoef, J. M. (2003). Body size of female calves and natality rates of known-aged females in two adjacent Alaskan caribou herds, and implications for management. Rangifer, 23(5), 203–209. https://doi.org/10.7557/2.23.5.1702