Mathematik und Bildung. mathematica didactica , [S. l.], v. 38, n. 1 a, p. 67–91, 2021. DOI: 10.18716/ojs/md/2015.1198. Disponível em: https://journals.ub.uni-koeln.de/index.php/mathematica_didactica/article/view/1198. Acesso em: 22 dec. 2024.