DUARTE, Newton; SILVA, Efrain Maciel e; ANJOS, Ricardo Eleutério dos. Determination and Freedom in Creation Mediated by Sign Systems. Revista Brasileira de Estudos da Presença, [S. l.], v. 11, n. 1, p. 01–19, 2021. Disponível em: https://seer.ufrgs.br/index.php/presenca/article/view/108234. Acesso em: 28 ago. 2025.