Radev, V.; Kanev, I.; Fried, B.

Comments on Eye-Flukes (Philophthalmidae Looss, 1819) in the Genera Philophthalmus and Natterophthalmus, With a Re-Designation of the Type-Species of Natterophthalmus

. Zootaxa 2006, 1223, 19–22.