DUCKWORTH, M.; MCDOUGALL, K.; DE JONG, G.; SHOCKEY, L. Improving the Consistency of Formant Measurement. International Journal of Speech, Language and the Law, [S. l.], v. 18, n. 1, p. 35–51, 2011. DOI: 10.1558/ijsll.v18i1.35. Disponível em: https://journal.equinoxpub.com/IJSLL/article/view/5977. Acesso em: 9 feb. 2023.