H. A. Turner, Mc Innis, M., Angell, R. F., and Weber, D. W.,
“Factors Associated with Dystocia in Beef Heifers”,
The Professional Animal Scientist, vol. 8, no. 3, pp. 43 - 47, 1992.
T. Svejcar, Angell, R. F., and Miller, R. F.,
“Fixed location rain shelters for studying precipitation effects on rangelands”,
Journal of Arid Environments, vol. 42, no. 3, pp. 187 - 193, 1999.