“Formalization of the Perception of the Nasalized Low Vowel in Spanish in the Light of the BiPhon Model: A Comparative Study of Grammar Fragments of Spanish Native Speakers and Brazilian Students Learning Spanish As a Foreign Language”. Revista De Estudos Da Linguagem, vol. 29, no. 1, Oct. 2024, pp. 13-48, https://doi.org/10.17851/2237-2083.29.1.13-48.