Dypvik, Audny T., and Elzbieta B. Slawinski. “Perceptual Differences in Categorization of Speech Sounds by Norwegian/English Bilinguals”. Canadian Acoustics 31, no. 3 (September 1, 2003): 48–49. Accessed September 21, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1544.