BITTNEROVÁ, D. The role of notation in mathematics. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 3, p. 7–12, 2003. Disponível em: https://studmath.uken.krakow.pl/article/view/13459. Acesso em: 30 oct. 2026.