Intellectual biography of Zbigniew Brzezinski: the author’s experience of the historical source base development and historical sources analysis: DOI: https://doi.org/10.17721/1728-2640.2026.162.8. ВКНУІ [Internet]. 2026 Jun. 10 [cited 2026 Oct. 2];162(1-2). Available from: https://history.bulletin.knu.ua/en/article/view/10302