S. Koller, “Archival Instructions from the Ministry of Security Archives of the Polish People’s Republic (1956–1990): Overview of the Issues”, Жаңа Архив, vol. 2, no. 1, pp. 48–63, Mar. 2023, Accessed: Oct. 15, 2026. Available: https://zhana-archive.kz/zhana-arkhiv/article/view/19