Wierzbicka J., 1982. Analysis of maturity of Asymphylodora imitans (Mżhling,1898) (Trematoda: Monorchiidae) in definite hosts. Acta Ichthyol. Piscat. 12 (1): 79-86.

Observations on Asymphylodora imitans (Mżhling,1898) from Abramis brama (L.), A. ballerus (L.), and Blicca bjoerkna (L.) carried out over 3 years allowed to describe the maturity stages of the parasite in its definite hosts. Juvenile and mature forms were separated among the trematodes found. The percentage distribution of the two groups in monthly samples of the fish species studied is described.