Kosztarab, Michael (March 2000). "Hungarian Coccidology". The Scale, Volume XXIV. Systematic Entomology Lab, USDA. Archived from the original on 9 October 2010. Retrieved 22 May 2011.
Kosztarab, Michael (March 2000). "Hungarian Coccidology". The Scale, Volume XXIV. Systematic Entomology Lab, USDA. Archived from the original on 9 October 2010. Retrieved 22 May 2011.