ŠALOM, P.; ROLÍNEK, M. Cestou necestou ke kombinatorice. Matematika–Fyzika–Informatika, [S. l.], v. 23, n. 4, p. 261–269, 2014. Disponível em: http://158.194.80.143/index.php/mfi/article/view/151. Acesso em: 13 led. 2025.