Tsivatyi, Viacheslav. “International-Political Consequences and Frontiers of the Thirty Years War (1618-1648): Historical, Diplomatic and Institutional Discourses”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 27 (March 12, 2019): 88–96. Accessed May 5, 2024. https://vspu.net/nzhist/index.php/nzhist/article/view/560.