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3. Beil-Berti, F. (in press a). The control of pharyngeal cavity size for English voiced and voiceless stops. Journal of the Acoustical Society of America.
4. Beil-Berti, F. (in press b). The velopharyngeal mechanism in oral and nasal articulation: an electromyographic study. Journal of Speech and Hearing Research.
5. The velopharyngeal muscles in speech: an electromyographic and cineradiographic study;Fritzell,1969