Serviços de telecomunicações Portugal vs Europa [documento electrónico] : análise e previsões, 2005-2010 / Gabriel Coimbra
Convergence and regulation in Portugal [documento electrónico] / José Manuel Amado da Silva
Security [documento electrónico] : a major issue for telecoms service providers / David James, Graham Titterington
Fixed-mobile convergence [documento electrónico] : market developments and policy issues / Organisation for Economic co-Operation and Development
Worldwide telecom spending 2007-2011 forecast [documento electrónico] : worldwide telecom black book, 2007 / Stephen Minton
Communications market report [documento electrónico] / Office of Communications
The little data book on information and communication technology 2007 / ed. World Bank
The international communications market 2007 [documento electrónico] / Office of Communications
Digiworld 2007 : the digital world´s challenges; : telecom internet media / ed. IDATE Foundation