1. Brandon, J.R., 1978. Parasites in soil/sludge systems, Sandia Nat. Lab 5–13 (Alburquerque)
2. Burger, H.J., Rieso, A., Stoye, M., Heuer, D., Tauber, M., 1978 Resistance of parasitic eggs, oocysts and larvae in sewage sludge against electron rays, Fourth Int. Congress of Parasitol. Section D 57–58 (Warsaw)
3. Eradication of parasitic cysts and eggs in sewage sludge by irradiation with low energy electrons;Enigk;Zbl. Bakt. Hyg,1975
4. The biochemistry of Ascaris;Fairbain;Exp. Parasitol,1959
5. Ultrastructural aspects of oocyte development and shell formation in Ascaris lumbricoı̈des;Foor;J. Parasitol,1967