1. Federal Office of Culture, Switzerland, International Transfer of Cultural Objects—UNESCO Convention 1970 and UNIDROIT Convention 1995—Report of the Working Group, Berne, 1999.
2. A Licit International Traffic in Ancient Art: Let There Be Light!
3. UNESCO Report 12th Session of the Intergovernmental Committee for Promoting the Return of Cultural Property to its Countries of Origin or its Restitution in Case of Illicit Appropriation. Paris, 25–28 March 2003.