TRACZYK, Wiesław. Preface. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 17, n. 3, 2004. DOI: 10.26636/jtit.2004.3.258. Disponível em: https://www.jtit.pl/jtit/article/view/258. Acesso em: 11 jul. 2026.