CISPR 20 [documento electrónico] : récepteurs de radiodiffusion et de télévision et équipments associés; : caractéristiques d'immunité; : limites et méthodes de mesure / Commission Electrotechnique Internationale
Media system of Portugal [documento electrónico] / Carlos Landim
The communications market 2005 [documento electrónico] / Office of Communications
Anuário comunicação / Obercom Observatório da Comunicação
DigiWorld 2005 : the digital world´s challenges / ed. IDATE; : telecom internet media
Barómetro da comunicação / Obercom Observatório da Comunicação
Broadcast TV to mobile [documento electrónico] : a solution looking for a problem? / ed. Datamonitor
EN 50083-2/A1 [documento electrónico] : cable networks for television signals, sound signals and interactive services: part 2: electromagnetic compatibility for equipment / European Committee for Electrotechnical Standardization
IEC 60728-11 [documento electrónico] : cable networks for television signals, sound signals and interactive services: part 11: safety / International Electrotechnical Commission