FABIA, Ireneusz; FABIA, Urszula; PIOTROWSKI, Sebastian. Cross-border cooperation as a key element of internal security – selected aspects . Scientific Journal of Bielsko-Biala School of Finance and Law, Bielsko-Biała, PL, v. 28, n. 3, 2024. DOI: 10.19192/wsfip.sj3.2024.16. Disponível em: https://www.asej.eu/index.php/asej/article/view/833. Acesso em: 30 apr. 2025.