Silva, José Fernandes da, and Luis Roberto Pino-Fan. “Thematic Section Presentation - Onto-Semiotic Approach to Mathematical Cognition and Instruction (OSA): Theoretical, Methodological and Practical Approaches”. Revemop, vol. 3, Dec. 2021, pp. 1-6, https://periodicos.ufop.br/revemop/article/view/6534.