A Graph Model Based Blockchain Implementation for Increasing Performance and Security in Decentralized Ledger Systems[J] IEEE ACCESS 2020(8) Tsoulias, Konstantinos Palaiokrassas, Georgios Fragkos, Georgios Litke, Antonios Varvarigou, Theodora A.
Centralized and Decentralized Distributed Energy Resource Access Control Implementation Considerations[J] ENERGIES 2022(15) Fragkos, Georgios Johnson, Jay Tsiropoulou, Eirini Eleni