1. Principles of Voice Production;Titze,1994
2. The Comparative Anatomy and Physiology of the Larynx;Negus,1949
3. Die Stimmlippen im Zustande der Phonation;Tameaud;Hals-, Nasen- u. Ohrenarzt,1937
4. High-speed motion pictures of the human vocal cords.;Farnsworth;Bell Laboratories Record,1940
5. Measurements of the vocal folds during changes in pitch;Hollien;J Speech Hear Res,1960