C. V.  Löhr, Juan-Sallés, C., Rosas-Rosas, A., García, A. Parás, Garner, M. M., and Teifke, J. P., 
“Sarcoids in captive zebras (Equus burchellii): association with bovine papillomavirus type 1 infection.”, 
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, vol. 36, no. 1, pp. 74-81, 2005.
 J. P.  Teifke, Löhr, C. V., and Langner, C., 
“Tp53 expressing squamous cell carcinoma of the tonsil in a captive polar wolf (Canis lupus arctos).”, 
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, vol. 36, no. 3, pp. 538-42, 2005.