Wróbel, Rafał, and Zuzanna Derenda. “The Concept of Critical Infrastructure Protection in Poland for Years 2015-2017”. Defence Science 2, no. 3 (November 16, 2023): 66-83. Accessed November 17, 2025. https://ojs3.mtak.hu/index.php/vedelemtudomany/article/view/13132.