Books
M. Avbelj and J. Komárek, Constitutional Pluralism in the European Union and Beyond (Hart, 2012)
O. Beaud, Théorie de la Fédération (Presses Universitaires de France, 2009)
M. Burgess, Federalism and the European Union: The Building of Europe 1950–2000 (Routledge, 2000)
E. Haas, The Uniting of Europe (Stanford University Press, 1968)
A. Hamilton, J. Madison and J. Jay, The Federalist, ed. T. Ball (Cambridge University Press, 2003)
P. Hay, Federalism and Supranational Organisations (University of Illinois Press, 1966)
J. Weiler, The Constitution of Europe (Cambridge University Press, 1999)
Articles (and Chapters)
G. Duke, ‘European Constitutionalism and Constituent Power’ (2019) 33 EL Rev. 50
D. Grimm, ‘Does Europe Need a Constitution?’ (1995) 1 ELJ 282
J. Habermas, ‘Remarks on Dieter Grimm’s “Does Europe Need a Constitution?”’ (1995) 1 ELJ 303
P. Pescatore, ‘International Law and Community Law: A Comparative Analysis’ (1970) 7 CML Rev 167
C. Schmitt, ‘Verfassungslehre des Bundes’ in Verfassungslehre (Duncker & Humblot, 2003), 361
R. Schütze, ‘Models of Demoicracy: Some Preliminary Thoughts’, EUI Working Paper Law 2020/08
N. Walker, ‘The Idea of Constitutional Pluralism’ (2002) 65 MLR 317
D. Wyatt, ‘New Legal Order, or Old’ (1982) 7 EL Rev 147