1. The nature of international law and the concept of sources 2. The classic definition: Article 38 of the ICJ Statute and its background 3. Application of the classic definition to the production of exceptional norms peremptory norms (jus cogens) rights and obligations erga omnes non-binding norms "soft law" 4. Non-statutory sources 5. Specialised fields, including human rights judicial procedure, in particular that of the ICJ UN procedural law 6. Other possible contributors to law: international corporations national courts 7. Conclusion
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