1. Crompton, D.W.T.: Malfunctioning of the gut: parasitism. In: Digestion in the fowl. p. 193?245. K.N. Boorman and B.M. Freeman, eds. Edinburgh: British Poultry Science 1976
2. Crompton, D.W.T., Nesheim, M.C.: Host-parasite relationships in the alimentary tract of domestic birds. In: Advances in parasitology. B. Dawes, ed., p. 95?194. New York and London: Academic Press 1976
3. Doran, D.J.: Pancreatic enzymes initiating excystation ofEimeria acervulina sporozoites. Proc. Helm. Soc. Wash.33, 42?43 (1966)
4. Doran, D.J., Farr., M.M.: Excystation of the poultry coccidium,Eimeria acervulina. J. Protozool.9, 154?161 (1962)
5. Farr, M.M., Doran, D.J.: Comparative excystation of four species of poultry coccidia. J. Protozool.9, 407?414 (1962)