1. Tumors of the Upper Respiratory Tract and Ear;Ash,1964
2. Barnes: cited by Peele and Hauser.
3. A Textbook of Histology. 668;Bloom,1962
4. Non-chromaffin paraganglioma of the middle ear;Brown;Ann. Otol.,1951
5. Glomus jugulare tumor of the middle ear. Clinical Aspects;Brown;Laryngoscope,1953