1. Vocal shadowing under conditions of normal and altered laryngeal sensation;Leonard;J Speech Hearing Res,1979
2. Speech analysis by computer;Horii,1972
3. Statistical principles in experimental design;Winer,1971
4. The concept of muscular isometrics for optimizing vocal intensity and efficiency;Titze,1979
5. Analysis of pitch control in singing;Fujisaki,1981