Hofkin, B. V., Hofinger, D. M., Koech, D. M. & Loker, E. S. (1992). Predation of
Biomphalaria and non-target molluscs by the crayfish
Procambarus clarkii: implications for the control of schistosomiasis.
Annals of Tropical Medicine and Parasitology. 86: 663-670.