1. The 5G Infrastructure PPP whitepapers.
https://5g-ppp.eu/white-papers/
2. “NGMN 5G White Paper” by NGMN Alliance (2016).
https://www.ngmn.org/uploads/media/NGMN_5G_White_Paper_V1_0.pdf
3. Sgambelluri, A., et al.: Orchestration of network services across multiple operators: The 5G exchange prototype. In: EuCNC (2017).
http://www.5gex.eu/
4. Ersue, M.: ETSI NFV management and orchestration-An overview. In: Proceeding of the 88th IETF Meeting (2013)
5. Hayden, S., Carrick, C., Yang, Q.: Architectural design patterns for multiagent coordination. In: Proceeding of the International Conference on Agent Systems, vol. 99 (1999)