Ingham, R. J., Bothe, A. K., Wang, Y., Purkhiser, K., & New, A. (2012). Phonation interval modification and speech performance quality during fluency-inducing conditions by adults who stutter.

Ingham, Roger J., Anne K. Bothe, Yuedong Wang, Krystal Purkhiser, und Anneliese New. Phonation Interval Modification and Speech Performance Quality During Fluency-inducing Conditions By Adults Who Stutter. 2012.

Ingham, Roger J., et al. Phonation Interval Modification and Speech Performance Quality During Fluency-inducing Conditions By Adults Who Stutter. 2012.