CSIZNER, Z. The Definition of Covert Intelligence and the Examination of Its Efficiency. Magyar Rendészet, [S. l.], v. 22, n. 3, p. 19–32, 2022. DOI: 10.32577/mr.2022.3.1. Disponível em: https://folyoirat.ludovika.hu/index.php/magyrend/article/view/6246. Acesso em: 6 máj. 2024.