SAVKA, O. The problem of developing a universal definition of private military and security activities. Problems of legality, [S. l.], n. 172, p. 207–226, 2026. DOI: 10.21564/2414-990X.172.349527. Disponível em: https://plaw.nlu.edu.ua/article/view/349527. Acesso em: 8 apr. 2026.