MAJOR, M.; NAWOLSKA, B. Nowe spojrzenie na gry Penneya. Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia, [S. l.], v. 5, p. 83–94, 2017. Disponível em: https://didacticammath.uken.krakow.pl/article/view/3683. Acesso em: 4 may. 2024.