J. Kowalik, “‘Personal matters” of the officials in the Grodno province during the reign of Nicholas I based on archival materials of the National Historical Archives of Belarus in Grodno’”, in Marginesy, vol. 4, J. Kita and M. Korybut-Marciniak, Eds. Poland: Lodz University Press, 2021, pp. 75–88. doi: 10.18778/8142-844-6.05.