Błaszczyk, Piotr, and Kazimierz Mrówka. “Euclid, Elements, Book II. Translated into Polish from the Text of Heiberg”. Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia 12 (December 24, 2020): 265–279. Accessed April 29, 2024. https://didacticammath.uken.krakow.pl/article/view/8387.