1. For the systemisation of legal techniques for responding to a conflict of norms or the relation between norm and exception, see Fragmentation of International Law: Difficulties Arising from the Diversification and Expansion of International Law, Report of the Study Group of the International Law Commission, A/CN.4/L.682, 4 April 2006, and for the oscillation between sovereign and source-based arguments, see Koskenniemi, supra note 1, 573–589.
2. Ibid, 617.
3. Ibid, 566.
4. Ibid, 565–6.
5. Ibid, 138.