FERNÁNDEZ PLANAS, A. M. Estudio del campo de dispersión de las vocales castellanas. Journal of Experimental Phonetics, [S. l.], v. 5, p. 131–162, 1993. Disponível em: https://revistes.ub.edu/index.php/experimentalphonetics/article/view/44629. Acesso em: 8 jan. 2025.