Sadowski, Piotr. “XIV Opole Legal-Historical Colloquium Res Publica Semper Reformanda, Opole, 10 May 2018”. The Opole Studies in Administration and Law 16, no. 4 (1) (September 18, 2019): 263–266. Accessed December 27, 2024. https://czasopisma.uni.opole.pl/index.php/osap/article/view/1216.