M. Petr, “Member States in the EU: The Issue of (Pooled) Sovereignty”, in Federalism as the Future of the Diverse EU?, A. Zs. Varga and L. Berkes, Eds. Miskolc–Budapest: Studies of the Central European Professors’ Network, 2025, pp. 155–186. doi: 10.54237/profnet.2025.azsvlbffde_5.