Mobile and fixed broadband prices in Europe 2022 [documento eletrónico] / European Commission
Measuring digital development [documento eletrónico] : facts and figures; : focus on landlocked developing countries / International Telecommunication Union
Measuring digital development [documento eletrónico] : facts and figures; : focus on small island developing states / International Telecommunication Union
The mobile economy 2024 [documento eletrónico] / ed. GSMA
Cybersecurity assessments [documento eletrónico] : evaluations & certifications - state of play 2018-2022 / Chloé Blondeau, José Ruiz