- Human Rights: Between Idealism and Realism (Collected Courses of the Academy of European Law)
- Deutschlands Aktuelle Verfassungslage (Veroffentlichungen Der Vereinigung Der Deutschen Staatsrechtslehrer, Heft 49)
- The Statute of the International Court of Justice: A Commentary (Oxford Commentaries on International Law)
- Conciliation in International Law: The OSCE Court of Conciliation and Arbitration
- Flexibility in International Dispute Settlement : Conciliation Revisited







