Wełna, Jerzy. “The Monophthongisation of Diphthongs Before Dorsal Fricatives: A Corpus Study”. Studia Anglica Posnaniensia 45, no. 2 (January 8, 2010): 3–16. Accessed August 16, 2024. https://pressto.amu.edu.pl/index.php/stap/article/view/v10121-009-0013-6.