VERTLIEB, E.A. In Search of the Fundamentals of Multipolarity - to the System Thinking in Geopolitcs and International Relations. Eurasian Integration, [S. l.], n. 4, p. 140–142, 2020. Disponível em: https://eurasian-integration.owebs.ru/article/view/8101. Acesso em: 8 nov. 2026.