Lechner, Zoltán, and Kata Murányi. “From Unipolarity to Fragmentation: An Overview of Geopolitical Dynamics in the Post-Cold War Period”. POLARITIES 7, no. SI (June 11, 2026): i-x. Accessed July 2, 2026. https://journals.lib.pte.hu/index.php/polusok/article/view/9404.