MFI, E. Set of problems for the first round of the 65th year of the Mathematics Olympiad (categories A, B, C and P-programming). MATHEMATICS–PHYSICS–INFORMATICS, [S. l.], v. 24, n. 3, p. P1–P17, 2015. Disponível em: https://www.mfi.upol.cz/index.php/mfi/article/view/216. Acesso em: 5 nov. 2026.