1. 5G-PHOS project. http://5g-phos.eu/
2. From Standards to Service - the European Way to 5G, IEEE 5G Tech Focus, vol. 1, no. 4, December 2017. https://futurenetworks.ieee.org/tech-focus/december-2017/from-standards-to-service-the-european-way
3. Mobile Operator 5G Capex Forecasts: 2018–2023. http://www.heavyreading.com/details.asp?sku_id=3568&skuitem_itemid=1789
4. Lessons learned. https://www.ericsson.com/en/blog/6/2020/lessons-from-the-first-wave-of-5g-deployments-why-transport-is-critical-to-5g-rollout
5. White paper. https://www.ftthcouncil.eu/documents/Reports/Technical%20Convergence_V17_FINAL_7march2019_Bis.pdf