FISCHER-JØRGENSEN, Eli. Some basic vowel features, their articulatory correlates and their explanatory power in phonology. ARIPUC, [S. l.], v. 18, p. 255–276, 1984. DOI: 10.7146/aripuc.v18i.131799. Disponível em: https://tidsskrift.dk/ARIPUC/article/view/131799. Acesso em: 6 dec. 2025.