The state of digital communications 2021 [documento eletrónico] / European Telecommunications Network Operators' Association
The state of digital communications 2022 [documento eletrónico] / European Telecommunications Network Operators' Association
The state of digital communications 2023 [documento eletrónico] / European Telecommunications Network Operators' Association
The state of digital communications 2024 [documento eletrónico] / European Telecommunications Network Operators' Association