Anuário da comunicação 2021 [documento eletrónico] / Gustavo Cardoso...[et al.]
The strategic compass and EU space-based defence capabilities [documento eletrónico] / Daniel Fiott
Annual report 2021-2022 [documento electrónico] / Australian Communications and Media Authority
Annual report 2020-21 [documento electrónico] : Regulator Performance Framework Performance assessment 2020–21 / Australian Communications and Media Authority