JAKUBOWSKI, Andrzej; ŁUKASIAK, Lidia. Preface. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 38, n. 4, 2009. DOI: 10.26636/jtit.2009.4.951. Disponível em: https://www.jtit.pl/jtit/article/view/951. Acesso em: 13 jun. 2026.