POKRYSHEN, D. A.; NOSENKO, E. Y. ICT FOR DECISION OF INEQUALITIES. Information Technologies and Learning Tools, [S. l.], v. 27, n. 1, 2012. DOI: 10.33407/itlt.v27i1.613. Disponível em: https://journal.iitta.gov.ua/index.php/itlt/article/view/613. Acesso em: 13 aug. 2022.