P. WIERZBICKI, Andrzej. Preface. Journal of Telecommunications and Information Technology, [S. l.], v. 30, n. 4, 2007. DOI: 10.26636/jtit.2007.4.843. Disponível em: https://jtit.pl/jtit/article/view/843. Acesso em: 18 apr. 2026.