Wiedner, E. B., L. A. Horstman, S. B. Hooser, and M. Levy. “Case Report: Toxicosis in Cattle Caused by a Discontinued Organophosphorus Insecticide (fonofos)”. The Bovine Practitioner, vol. 39, no. 1, Feb. 2005, pp. 24-28, doi:10.21423/bovine-vol39no1p24-28.