1. Vereinzelte Beobachtungen und Bermerkungen. Exceptionelles verhalten des Gesichtsfeldes bei Pigmentenartung der Netzhaut. Albrecht von Graefes;von Graefe;Arch Klin Ophthalmol,1958
2. On the inheritance of retinitis pigmentosa, with notes of cases;Usher;Royal London Ophthalmol Hosp Rep,1914
3. Usher's and Hallgren's syndromes;Merin;Acta Genet Med Gemellol,1974
4. Usher's syndrome: visual loss and variations in clinical expressivity;Fishman;Perspec Ophthalmol,1979
5. Usher's syndrome with unusual otologic manifestations;Beatty,1979