KOLEV, V. The importance of mass urban transport from a national security perspective. Politics & Security, [S. l.], v. 6, n. 3, p. 8–10, 2022. DOI: 10.5281/zenodo.7128959. Disponível em: http://politics-security.net/index.php/ojsdata/article/view/184. Acesso em: 20 may. 2024.