D. Sehnálek, “The Intergovernmental Alternative: ‘Tertial Law’ and Agreements Outside the Framework of Treaties”, in Unequal Equals? The Status of Member States in an Integrating European Union, D. Sehnálek, Ed. Miskolc–Budapest: Studies of the Central European Professors’ Network, 2026, pp. 279–299. doi: 10.54237/profnet.2026.dsuesmsieu_8.