MACHCEWICZ, Anna. Political Prisoners in Poland, 1944–56: The Sources and Strategies of Resistance in the Authoritarian State’s Prison System. Acta Poloniae Historica. Online. 1 February 2019. Vol. 118, pp. 93-126. [Accessed 30 June 2024]. DOI 10.12775/APH.2018.118.04.