Estudo sobre o impacto das redes de próxima geração no mercado [documento electrónico] / Ovum Consulting
Fixed voice connections and revenue forecast in Portugal to 2015 (databook) [documento electrónico] / Ovum Consulting
2011 security trends to watch [documento electrónico] : security / ed. Ovum
Trends in security attacks and incidents [documento electrónico] / Graham Titterington
Broadband market forecast in Portugal to 2015 [documento electrónico] / ed. Ovum Consulting