Grochalski, Stefan Marek. “Citizens of the European Union – Voters of the European Parliament – a Supranational Parliament”. The Opole Studies in Administration and Law 14, no. 3 (May 31, 2016): 147–162. Accessed December 29, 2024. https://czasopisma.uni.opole.pl/index.php/osap/article/view/1480.