Duckworth, Martin, Kirsty McDougall, Gea de Jong, and Linda Shockey. “Improving the Consistency of Formant Measurement”. International Journal of Speech, Language and the Law 18, no. 1 (September 13, 2011): 35–51. Accessed October 18, 2024. https://journal.equinoxpub.com/IJSLL/article/view/5977.