Business Models for Interoperable IoT Ecosystems. - Werner Schladofsky; Jelena Mitic; Alfred Paul Megner; Claudia Simonato; Luca Gioppo; Dimitris Leonardos; Arne Bröring (InterOSS@IoT, 2016)

Extension to Middleware for IoT Devices, with Applications in Smart Cities. - Christos Bouras; Vaggelis Kapoulas; Vasileios Kokkinos; Dimitris Leonardos; Costas Pipilas; Nikolaos Papachristos (IISSC/CN4IoT, 2017)

Trends in Digital Twin Framework Architectures for Smart Cities: A Case Study in Smart Mobility. - Evanthia Faliagka; Eleni Christopoulou; Dimitrios Ringas; Tanya Politi; Nikos Kostis; Dimitris Leonardos; Christos Tranoris; Christos P. Antonopoulos; Spyros G. Denazis; Nikos S. Voros (Sensors, 2024)