Przewłoka, Agnieszka. “Security Services Thwarts Attempts to Establish Catholic Intelligentsia Club in Katowice from 1956 to 1957”. Silesian Historical and Theological Studies 43, no. 1 (June 30, 2010): 124–136. Accessed November 11, 2026. https://journals.us.edu.pl/index.php/ssht/article/view/16684.