BULKOVÁ, K.; MEDOVÁ, J.; ČERETKOVÁ, S. Identification of Crucial Steps and Skills in High-Achievers’ Solving Complex Mathematical Problem within Mathematical Contest. Journal on Efficiency and Responsibility in Education and Science, [S. l.], v. 13, n. 2, p. 67-78, 2020. DOI: 10.7160/eriesj.2020.130202. Disponível em: https://www.eriesjournal.com/index.php/eries/article/view/300. Acesso em: 14 aug. 2020.