OTTE, Michael. PROOF AND EXPLANATION FROM A SEMIOTICAL POINT OF VIEW. Revista Latinoamericana de Investigación en Matemática Educativa, [S. l.], v. 9, n. 4, p. 23–43, 2006. Disponível em: https://relime.org/index.php/relime/article/view/466. Acesso em: 4 dic. 2024.