A Farewell to Fragmentation: reassertion and convergence in International Law
12 The European Union's participation in international economic institutions: a mutually beneficial reassertion of the centre13 Reinforcing the ICJ's central international role? Domestic courts' enforcement of ICJ decisions and opinions; Part 2 A farewell to fragmentation and the sources of law; A. Custom and Jus Cogens; 14 The International Court of Justice and the international customary law game of cards; 15 State practice, treaty practice and State immunity in international and English law; 16 Historical sketches about custom in international law; B. Treaty Interpretation.