LECHNER, Zoltán; MURÁNYI, Kata. From unipolarity to fragmentation: An overview of geopolitical dynamics in the post-Cold War period. POLARITIES, [S. l.], v. 7, n. SI, p. i-x, 2026. DOI: 10.15170/PSK.2026.SI.01.00. Disponível em: https://journals.lib.pte.hu/index.php/polusok/article/view/9404. Acesso em: 5 jul. 2026.