Baran, Michał. “Fortis-Lenis Distinction of Fricatives and Plosives in Welsh – Phonetically Distinctive Factors”. LingBaW. Linguistics Beyond and Within 6, no. 1 (December 30, 2020): 47–59. Accessed February 7, 2026. https://czasopisma.kul.pl/index.php/LingBaW/article/view/11830.