World telecommunication development report 1996/97 : trade in telecommunications / ITU
World telecommunication development conference : (WTDC-98): Valletta (Malta) 23 March - 1 April 1998: final report / Internacional Telecommunication Union
World telecommunication development conference (WTDC-02) : Istanbul, Turkey , 18-27 March 2002: final report / International Telecommunication Union
Tendances générales des réformes dans les télécommunications / UIT-BDT