Fauna Europaea: Helminths (Animal Parasitic) oleh David Gibson, Rodney Bray, David Hunt, Boyko Georgiev, Tomaš Scholz, Philip Harris, Tor Bakke, Teresa Pojmanska, Katarzyna Niewiadomska, Aneta Kostadinova, Vasyl Tkach, Odile Bain, Marie-Claude Durette-Desset, Lynda Gibbons, František Moravec, Annie Petter, Zlatka Dimitrova, Kurt Buchmann, E. Valtonen, Yde de Jong