“Materials from French archives about Ivan Mazepa in 1708: from the deconstruction of Ilko Borshchak’s hoaxes to new findings: DOI: https://doi.org/10.17721/1728-2640.2026.162.1”, ВКНУІ, vol. 162, no. 1-2, Jun. 2026, Accessed: Oct. 02, 2026. [Online]. Available: https://history.bulletin.knu.ua/en/article/view/10321