1. Ališauskaitė, V. (1958). The fauna of the echinostomous larvae in the fresh-water molluscs in the Lithuanian SSR. Acta Parasitologica Lithuanica, 1, 29–42 (In Russian).
2. Bashkirova, E. Y. (1941). Bird echinostomatids in the USSR with a review of their life cycles. Trudy Bashkirskoi Nauchnoissledovatel’skoi Veterinarnoy Opitnoy Stantsii, 3, 243–300 (In Russian).
3. Belopol’skaya, M. M. (1954). Fauna of parasites of birds of the Sudzukhinsk reserve (Primorie). Uchenye Zapiski Leningradskogo Gosudarstvennogo Universiteta, Seria Biologicheskikh Nauk, 35, 3–34 (In Russian).
4. Bezubik, B. (1956). Materials to the helminthofauna of aquatic birds of Poland. Acta Parasitologica Polonica, 4, 59–88 (In Polish).
5. Bhutta, M. S., & Khan, D. (1975). Digenetic trematodes of vertebrates from Pakistan. Bulletin of the Department of Zoology University of the Panjab, 8, 1–175.