1. Conjunctivitis meibomiana;Elschnig;D. Med. W.,1908
2. Textbook of Ophthalmology;Fuchs,1911
3. Clinical Methods of Examination. Congenital and Developmental Anomalies;Duke-Elder,1938
4. Diseases of the Outer Eye. Conjunctiva;Duke-Elder,1965
5. Chronic conjunctivitis;Thygeson;Trans. Am. Acad. Ophthalmol. Otolaryngol.,1963