VANĚČEK, D.; JIRSA, J. Electronic Education. Acta Polytechnica, [S. l.], v. 51, n. 3, 2011. DOI: 10.14311/1386. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/1386.. Acesso em: 28 jun. 2025.