B. A. Endress, Wisdom, M. J., Vavra, M., Parks, C. G., Dick, B. L., Naylor, B. J., and Boyd, J. M.,
“Effects of ungulate herbivory on aspen, cottonwood, and willow development under forest fuels treatment regimes”,
Forest Ecology and Management, vol. 276, pp. 33 - 40, 2012.