J. A. Ferguson, Woodberry, K., Gillin, C. M., Jackson, D. W. H., Sanders, J. L., Madigan, W., Bildfell, R. J., and Kent, M. L.,
“CYLICOSPIRURA SPECIES (NEMATODA: SPIROCERCIDAE) AND STOMACH NODULES IN COUGARS (PUMA CONCOLOR) AND BOBCATS (LYNX RUFUS) IN OREGON”,
Journal of Wildlife Diseases, vol. 47, no. 1, pp. 140 - 153, 2011.