Błaszczyk, Piotr, Kazimierz Mrówka, and Anna Petiurenko. 2020. “Decoding Book II of the Elements”. Annales Universitatis Paedagogicae Cracoviensis | Studia Ad Didacticam Mathematicae Pertinentia 12 (December):39-88. https://doi.org/10.24917/20809751.12.3.