SCHOLTZOVÁ, I. Combinatorics’ A journey to elementary mathematics education. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 3, p. 237–243, 2003. Disponível em: https://studmath.uken.krakow.pl/article/view/13495. Acesso em: 30 oct. 2026.