Araujo, Leandro Silveira de. “For a Morphosyntactic Variable: Theoretical and Applied Delimitations to the Expression of past Tense in Spanish”. Letrônica 10, no. 1 (December 27, 2017): 46–63. Accessed July 17, 2024. https://revistaseletronicas.pucrs.br/index.php/letronica/article/view/25041.