T. A.  Greaves, Jarecka, L., and Burt, M. D. B., ?On the life cycle of Hymenolepis evaginata Barker and Andrews, 1915 (Cestoda: Cyclophyllidea), a parasite of muskrats, Ondatra zibethica (L., 1766)?, Canadian Journal of Zoology, vol. 67, pp. 502-504, 1989.