1. O.N. Bauer, V.A. Musselius, and Yu. A. Strelkov(1973 ) Diseases of Pond Fishes , pp.115, 122 . Israel Program for Scientific Translations, Jerusalem.
2. Larval development of Bothriocephalus sp. (Cestoda: Pseudophyllidea) from carp (Cyprinm carpio L.) in Germany*
3. G.V. Nikolsky, and L. Birkett (1963 ) The Ecology of Fishes , pp.208 -209 . (translated from Russian by) Academic Press, New York.