Andrukiewicz, Elżbieta, and Piotr Krawiec. “The Proactive Face of Cybersecurity: Certification. Legislation and Market Response from the Perspective of ITSEF”. Journal of Telecommunications and Information Technology, no. Special Issue (February 10, 2025): 6–10. Accessed May 31, 2026. https://jtit.pl/jtit/article/view/1984.