1. Ballatyne, John C., Edward F. Evans, and Andrew W. Morrison. 1978. “Electrical Auditory Stimulation in the Management of Profound Hearing Loss.” Supplement. The Journal of Laryngology and Otology 92 (S1).
2. Bell, Alexander Graham. 1906. “Vowel Theories.” In Lectures upon the Mechanism of Speech, 117–129. New York: Funk & Wagnalls Co.
3. Berry, Gordon. 1939. “The Use and Effectiveness of Hearing Aids.” The Laryngoscope 49:912–942.
4. Brennan, Ward R., and J T. Rubinstein. 2008. “Music Perception in Cochlear Implant Users and its Relationship with Psychophysical Capabilities.” Journal of Rehabilitation Research and Development 45 (5): 779–89.
5. Chorost, Michael. 2005. “My Bionic Quest for Bolero.” Wired 13 (11), 1–4. Accessed February 8, 2013. http://www.wired.com/wired/archive/13.11/bolero.html .