Cihlář J, Eisenmann P, Krátká M, Vopĕnka P. Cognitive conflict as a tool of overcoming obstacles in understanding infinity. Teach. Math. Comp. Sci. [Internet]. 2009 Dec. 1 [cited 2024 Nov. 22];7(2):279-95. Available from: https://ojs.lib.unideb.hu/tmcs/article/view/14860