Video on demand 2005 [documento electrónico] : when will on-demand be in demand? / ed. Datamonitor
Ajudas à navegação : lista de radioajudas e serviços / Instituto Hidrográfico
Stimulating investment in network development [documento electrónico] : roles for regulators / ed. by A. K. Mahan and W. H. Melody
Getting off the ground : why the move to VoIP is a decision for all CXOs / ed. Deloitte