Karar, Y.F.M., Blend, C.K., Dronen, N.O. & Adel, A. (2023) Towards resolving the problematic status of the digenean genus Astiotrema Looss, 1900: Taxa excluded from Astiotrema (sensu stricto) with special reference to plagiorchioid genera closely related to the restricted concept of Astiotrema. Zootaxa, 5284 (3), 445–495.