CIHLÁŘ, Jiří; EISENMANN, Petr; KRÁTKÁ, Magdalena; VOPĔNKA, Petr. Cognitive conflict as a tool of overcoming obstacles in understanding infinity. Teaching Mathematics and Computer Science, [S. l.], v. 7, n. 2, p. 279–295, 2009. DOI: 10.5485/TMCS.2009.0240. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14860. Acesso em: 20 oct. 2024.