Kirby, James, and D. Robert Ladd. “Effects of Obstruent Voicing on Vowel F0: Implications for Laryngeal Realism”. Yearbook of the Poznan Linguistic Meeting 4, no. 1 (December 1, 2018): 213–235. Accessed March 28, 2024. https://pressto.amu.edu.pl/index.php/yplm/article/view/yplm-2018-0009.