NIEWIADOMSKA-SZYNKIEWICZ, Ewa. Preface. Journal of Telecommunications and Information Technology, [S. l.], v. 50, n. 4, 2012. DOI: 10.26636/jtit.2012.4.1284. Disponível em: https://jtit.pl/jtit/article/view/1284. Acesso em: 1 jun. 2026.