IEC 60728-4 [documento eletrónico] : cable networks for television signals, sound signals and interactive services; : part 4; : passive wideband equipment for coaxial cable networks / International Electrotechnical Commission
IEC 60728-5 [documento eletrónico] : cable networks for television signals, sound signals and interactive services / International Electrotechnical Commission
IEC 60728-1 [documento eletrónico] : cable networks for television signals, sound signals and interactive services; : part 1; : system performance of forward paths / International Electrotechnical Commission
European and US digital TV, 2006 - 2012 [documento electrónico] : boosting competitive advantage in the digital TV sector / ed. Datamonitor
A televisão paga : dinâmicas de mercado em Portugal e na Europa / Luísa Coelho Ribeiro