Agora VI : reporting on human capital : is it possible to report on human capital and, if so, why and how? Thessaloniki, 24-25 June 1999 / edited by Éric Fries Guggenheim.    Luxembourg :  Office for Official Publications of the European Communities,  2002 . 130 s.

Agora XII : training for mentally disabled people and their trainers : permitting the mentally disabled a genuine and appropriate exercise of their rights : Thessaloniki, 5 and 6 July 2001 / edited by Éric Fries Guggenheim.    Luxembourg :  Office for Official Publications of the European Communities,  2003 . 170 s.