J. R.  Anderson, Merrit, R. W., and Loomis, E. C., ?The insect-free cattle dropping and its relationship to increased dung fouling of rangeland pastures.?, Journal of Economic Entomology, vol. 77, pp. 133-141, 1984.

R. D.  Moon, Loomis, E. C., and Anderson, J. R., ?Influence of two species of dung beetle on larvae of face fly?, Environmental Entomology, vol. 9, pp. 607-612, 1980.