HAŁKA, Wojciech. National Institute of Telecommunications – International Partnership: Yesterday, Today and Tomorrow. Journal of Telecommunications and Information Technology, Warsaw, Poland, n. Special Issue, p. 10–13, 2010. DOI: 10.26636/jtit.2010.4.1108. Disponível em: https://jtit.pl/jtit/article/view/1108. Acesso em: 11 sep. 2026.