TÖPFER, P. Mezinárodní olympiáda v informatice IOI 2016. Matematika–Fyzika–Informatika, [S. l.], v. 25, n. 5, p. 397–399, 2016. Disponível em: http://158.194.80.143/index.php/mfi/article/view/303. Acesso em: 13 led. 2025.