PEREYRON, L.; ALVES, U. K. Effects of articulatory instruction concerning the low mid vowels of Portuguese (L3) on Spanish (L1) and English (L2): a case study. BELT - Brazilian English Language Teaching Journal, [S. l.], v. 9, n. 1, p. 167–189, 2018. DOI: 10.15448/2178-3640.2018.1.31990. Disponível em: https://revistaseletronicas.pucrs.br/ojs/index.php/belt/article/view/31990. Acesso em: 14 jun. 2024.