Jędraszewski, Marek. 2008. “The Communist Party Fighting Against Religion and the Communist State Warranting Religious Freedom As Theoretical Bases of Marxism-Leninism in Its Strife Against Religion and the Catholic Church in the Countries of Real Socialism”. Poznańskie Studia Teologiczne 22 (December):299-318. https://doi.org/10.14746/pst.2008.22.19.