Dedekind, Richard. “Continuity and Irrational Numbers”. Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia 9, no. 1 (July 1, 2018): 169–183. Accessed April 29, 2024. https://didacticammath.uken.krakow.pl/article/view/4317.