Fixed broadband prices in Europe 2017 [documento eletrónico] / European Commission
Fixed broadband prices in Europe 2018 [documento eletrónico] / European Commission
Cybercrime prevention [documento eletrónico] : principles for Internet service providers / World Economic Forum
Build back better with broadband [documento eletrónico] : research stories from the front line / coord. Alex Wong
Integrated annual report 2020 [documento electrónico] / VIVACOM