GRUSHKO, I. The concept of security in the integration processes of the European union countries. Political Science and Security Studies Journal, [S. l.], v. 2, n. 2, p. 18-24, 2021. DOI: 10.5281/zenodo.4904574. Disponível em: http://psssj.eu/index.php/ojsdata/article/view/45. Acesso em: 26 sep. 2025.