1. The papyrus Ebers: translated from the German version.;Bryan,1930
2. Textbook of ophthalmology.;Duke-Elder,1937
3. The prevention of blindness from trachoma.;Jones;Trans Ophthalmol Soc UK,1975
4. Global data on blindness.;Thylefors;Bull World Health Organ,1995
5. Uber Zelleinschlusse parasitarer Natur beim Trachom.;Halberstaedter;Arb Gesumdhamt Berlin,1907