Mathematik im Kindergarten: Kindperspektive und Fachsystematik. mathematica didactica , [S. l.], v. 30, n. 2, p. 86–91, 2007. DOI: 10.18716/ojs/md/2007.1080. Disponível em: https://journals.ub.uni-koeln.de/index.php/mathematica_didactica/article/view/1080. Acesso em: 22 dec. 2024.