Chronowski, Antoni, and Maciej Klakla. “Wstęp”. Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia 1 (July 26, 2017): 5–7. Accessed November 23, 2024. https://didacticammath.uken.krakow.pl/article/view/3785.