Enisa Cybersecurity market analysis framework (ECSMAF) [documento eletrónico] / Louis Marinos ...[et.al.]
Integrated annual report 2017 [documento electrónico] / VIVACOM
Integrated annual report 2040 [documento electrónico] / VIVACOM
Online advertising [documento eletrónico] : the impact of targeted advertising on advertisers, market access and consumer choice / Niklas Fourberg...[et al.]
Integrated annual report 2016 [documento electrónico] : consolidated and separate anual activities report / VIVACOM