NÉMETH, N.; ZSAKÓ, L. Online Training and Contests for Informatics Contestants of Secondary School Age. Journal of Education, Technology and Computer Science, [S. l.], v. 11, n. 1, p. 273–280, 2015. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6557. Acesso em: 24 lis. 2024.