SILVA, Odair Vieira da; OLIVEIRA, Gilson de Sousa; ARRAIS NETO, Enéas de Araújo. Considerations on the History of the Notion of Linguistic Sign: : the contributions of Saussure, Vygotsky and Volóchinov . Revista Labor, [S. l.], v. 2, n. 25, p. 08–31, 2021. DOI: 10.29148/labor.v2i01.71021. Disponível em: https://www.periodicos.ufc.br/labor/article/view/71021. Acesso em: 9 dec. 2025.