TURČÁNI, M.; KUNA, P. ANALYSIS OF SUBJECT DISCRETE MATHEMATICS PARTS AND PROPOSAL OF E-COURSE MODEL FOLLOWING PETRI NETS FOR INFORMATICS EDUCATION. Journal on Efficiency and Responsibility in Education and Science, [S. l.], v. 6, n. 1, p. 1-13, 2013. DOI: 10.7160/eriesj.2013.060101. Disponível em: https://www.eriesjournal.com/index.php/eries/article/view/71. Acesso em: 25 feb. 2021.