M. Vavra, Rice, R. W., and Bement, R. E.,
“Chemical Composition of the Diet, Intake and Gain of Yearling Cattle on Different Grazing Intensities”,
Journal of Animal Science, vol. 36, no. 2, pp. 411 - 414, 1973.
M. Vavra, Rice, R. W., and Hansen, R. M.,
“A Comparison of Esophageal Fistula and Fecal Material to Determine Steer Diets”,
Journal of Range Management, vol. 31, no. 1, p. 11, 1978.