Symptoms of behavioural anapyrexia - reverse fever as a defence response of snails to fluke invasion.

Zbikowska, E., Cichy, A., (2012). Journal of Invertebrate Pathology 109(3), 269-273. Elsevier, Amsterdam, Netherlands. English language

Metazoan parasites of flounder Platichthys flesus (L.) along a transect from the southwestern to the northeastern Baltic Sea.

Køie, M., (1999). ICES Journal of Marine Science 56(2), 157-163. English language

Studies on the common trematodes of ducks (Anas boschas domesticus) in Kerala. I. Incidence.

Sreekumaran, P., Peter, C. T., (1973). Indian Veterinary Journal 50(9), 946-947. English language

The importance of leeches in the life cycle of the order Strigeidida (Trematoda).

Vojtek, J., Opravilová, V., Vojtková, L., (1967). Folia Parasitologica 14(2), 107-119. Praha, not specified language