JUKLOVÁ, L.; ŠVRČEK, J. Proofs in plane geometry problems. MATHEMATICS–PHYSICS–INFORMATICS, [S. l.], v. 28, n. 2, p. 92–101, 2019. Disponível em: https://mfi.upol.cz/index.php/mfi/article/view/446. Acesso em: 15 nov. 2026.