WICIK, Robert. Cryptology Laboratory - its quality system and technical competence according to the ISO/IEC 17025 standard. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 18, n. 4, p. 58–63, 2004. DOI: 10.26636/jtit.2004.4.264. Disponível em: https://www.jtit.pl/jtit/article/view/264. Acesso em: 24 aug. 2026.