HANCZEWSKI, Sławomir. Preface. Journal of Telecommunications and Information Technology, [S. l.], v. 80, n. 2, 2020. DOI: 10.26636/jtit.2020.preface2. Disponível em: https://jtit.pl/jtit/article/view/500. Acesso em: 16 apr. 2026.