Koszel, Bogdan. “A Hegemony Against Its Own Will? The Problems and Challenges Facing German Leadership in the European Union in the 2010s”. Rocznik Integracji Europejskiej, no. 9 (June 15, 2015): 265–287. Accessed September 27, 2024. https://pressto.amu.edu.pl/index.php/rie/article/view/6208.