1. 5G Americas, 5G & LTE Deploymentshttps://bit.ly/2J0EjjM
2. 3GPP, Release 16https://bit.ly/3lRNzF7
3. 3GPP, Release 17https://bit.ly/39hiUOn
4. The Mobile Economy: 2020, GSMAhttps://bit.ly/3kZylwF
5. With 5G Rollout Lagging, Research Looks ahead to 6G, IEEE Spectrumhttps://bit.ly/338PZrQ