Security of the borders of the  Republic of Poland-Border Guard yesterday and today. Scientific Journal of Safety and Logistics, [S. l.], v. 2, n. 1, 2024. DOI: 10.5281/zenodo.11408319. Disponível em: https://www.sjsl.net/index.php/journal/article/view/14. Acesso em: 17 may. 2025.