1. Professor of Public International Law, European University Institute, Florence, Italy
2. John C. Jeffries, Jr., Distinguished Professor of Law, University of Virginia, Charlottesville, VA, USA
3. Professor of International Law and Director, Glasgow Centre for International Law and Security (GCILS), University of Glasgow, Glasgow, United Kingdom
4. University Professor and Joseph Straus Professor of Law, New York University School of Law, New York, USA