Błaszczyk, Piotr, and Anna Petiurenko. “Euclid’s Theory of Proportion Revised”. Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia 11 (December 3, 2019): 37–62. Accessed November 21, 2024. https://didacticammath.uken.krakow.pl/article/view/6901.