1. Cholesteatoma Formation in the Middle Ear in Animal Experiments
2. 4U. Fisch(1980 ) Cholesteatoma. Tympanoplasty and Stapedectomy. A Manual of Techniques. Grorg Thieme Verlag, Stutggard, pp. 1 -82 .
3. 5J. Sade(1977 ) Pathogenesis of Attic Cholesteatoma: The Metaplasia Theory. Cholesteatoma. Aesculapius Publ., Birmingham, pp. 212 -232 .