NIEWIADOMSKA-SZYNKIEWICZ, Ewa. Preface. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 62, n. 4, 2015. DOI: 10.26636/jtit.2015.4.975. Disponível em: https://www.jtit.pl/jtit/article/view/975. Acesso em: 15 jun. 2026.