Radio [ <<< Politics ] [ Satellites >>> ] Simon Bazalgette "Thematic radio" (Rome - Kagan World Media, 09/10/1997) Gianfranco Bettetini "Communication technologies and changes in the economic and social structure" (Milan, 27/03/98) Giuseppe Richeri "The history of the media" (Florence, 06/01/96) Guido Vannucchi "The history of television digital" (Rome, 09/04/98)