ЗАБУЛЕНЕ, Лайма. On Front Mutation in the System of Old English Diphthongs. Kalbotyra, [S. l.], v. 32, n. 3, p. 134–139, 1981. DOI: 10.15388/Knygotyra.1981.22012. Disponível em: https://journals.vu.lt./kalbotyra/article/view/22012. Acesso em: 27 apr. 2025.