D. Davidović and Ž. Kešetović, “Comparative Overview of Legislation Governing Private Security in the EU”, Zbornik IKSI, vol. 28, no. 1–2, pp. 79–92, Dec. 2009, Accessed: Nov. 11, 2026. Available: https://zbornik-iksi.rs/index.php/home/article/view/120