Lectures at the universities
- Beijing (August 2019),
- Pavia (May 2019),
- Toulouse (October 2015),
- Aix-en-Provence (June 2015),
- Rajiv Gandhi National University of Law (February 2015),
- Geneva (May 2013),
- Paris II Panthéon-Assas (May 2012),
- Georgetown (October/November 2008),
- American University Washington College of Law (October 2008),
- John Hopkins (October 2008),
- Georgetown (June 2007),
- Boston (April 2007),
- Harvard (April 2007),
- Ljubljana (April 2007),
- Amsterdam (April 2005, November 2006),
- Oslo (November 2003),
- Dakar (September 1999),
- Yale (December 1994),
- Columbia (January 1994),
- Geneva (April 1988).