Гончаров, Г.В. “Development of Z. Brzezinski’s Geostrategic Concept Regarding Ukraine (1950 – 2017)”. The Journal of V. N. Karazin Kharkiv National University. Series History, no. 55 (December 10, 2019): 88-97. Accessed November 24, 2024. https://periodicals.karazin.ua/history/article/view/14837.