Belikova, H. and Shcherban, A. (2025) “A. Westerfeld’s drawing ‘Meeting of Bohdan Khmelnytsky’s Ambassadors with Janusz Radziwill’ as a historical source”, V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’, 40, pp. 6-17. doi: 10.26565/2227-6505-2025-40-01.