Matwijów, Maciej. “Manuscript Books: Collections of Political Life Materials from the Area of the Grand Duchy of Lithuania Dating Back to the 17th and 18th Centuries in Libraries, Archives and Museums in Poland”. Knygotyra, vol. 77, Dec. 2021, pp. 171-02, https://doi.org/10.15388/Knygotyra.2021.77.92.