1. Should vocal training follow vocal development in childhood?;Titze I.;Journal of Singing,2001
2. Vocal exercises for children of all ages;Edwin R.;Journal of Singing,2001
3. Development of the child ’ s voice: Premutation, mutation;Hacki T.;International Journal of Pediatric Otorhinolaryngology,1999
4. Formant frequency analysis of children ’ s spoken and sung vowels using sweeping fundamental frequency production;White P.;Journal of Voice,1999
5. Leading roles in a high school musical: Effects on objective and subjective measures of vocal production;Lee L.;Medical Problems of Performing Artists,1998