Forms of Operative and Service Activities of the Ukraine’s State Border Guard Agencies (Units): Concepts and Legal Regulation. Law and Safety, [S. l.], v. 74, n. 3, p. 18–23, 2019. DOI: 10.32631/pb.2019.3.02. Disponível em: https://pb.univd.edu.ua/index.php/PB/article/view/266. Acesso em: 25 sep. 2025.