1. Ames, E., Schmidt, D., Hutcheson, D., et al.: Strategies for the control of swine parasites. Proc. Int. Pig Vet. Soc., 1976, page 4.
2. Experimental Ascaris suum infection in piglets: Inverse relationship between the numbers of inoculated eggs and the numbers of worms established in the intestine;Anderson;Acta Pathol. Microbiol. Scand. [B],1973
3. Backstrom, L., Johnson, W., Memon, M., et al.: Diseases in swine recorded by post slaughter checks at a slaughterhouse in west Central Illinois. Proc. Int. Pig Vet. Soc., 1980, page 359.
4. Observations on the life cycle and pathogenecity of the swine kidney worm (Stephanurus dentatus);Batte;J. Am. Vet. Med. Assoc.,1960
5. Prenatal infection with the swine kidney worm (Stephanurus dentatus) and associated lesions;Batte;J. Am. Vet. Med. Assoc.,1966