GuildS. R.: Interpretation of Hearing Tests, Arch. Otolaryngol.431 (Apr.) 1949.
2.
DixM. R.HallpikeC. S.: The Peep Show, Brit. Med. Jour.719 (Nov.) 1947.
3.
BordleyJ. E.HardyW. G.: A Study in Objective Audiometry with the Use of a Psycho-galvanometric Response, Annals of Otology, Rhinology and Laryngology751, 1949.
4.
DavisH.: Hearing and Deafness, Murrary Hill Books Inc., New York and Toronto, p. 104.
5.
PotterR. K.KoppG. A.GreenH. C.: Visible Speech, Van Nostrand Co., New York.
6.
KobrakH. G.: Physiology and Pathology of Sound Conduction in the Ear, Trans. Amer. Acad. Ophthalmol. and Otolaryngol.708 (July-Aug.) 1950.
7.
GuildS. R.: Interpretation of Hearing Tests with Special Reference to Conduction Deafness, Jour. Amer. Med. Assn.466 (Feb.) 1950.