Wszołek, W., and M. Kłaczyński. “Comparative Study of the Selected Methods of Laryngeal Tone Determination”. Archives of Acoustics 31, no. 4(S) (January 1, 2014): 219–226. Accessed April 25, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1346.