SURYNKOVÁ, P. Geometrie pohybu II: Obálky křivek. Matematika–Fyzika–Informatika, [S. l.], v. 28, n. 4, p. 241–249, 2019. Disponível em: http://158.194.80.143/index.php/mfi/article/view/464. Acesso em: 13 led. 2025.