A reference requirements set for public service provision enterprise architectures. - Efthimios Tambouris; Eleni Kaliva; Michail Liaros; Konstantinos A. Tarabanis (Softw. Syst. Model., 2014)

Understanding Researchers Collaboration in eParticipation using Social Network Analysis. - Eleni Kaliva; Dimitrios Katsioulas; Efthimios Tambouris; Konstantinos A. Tarabanis (Int. J. Electron. Gov. Res., 2015)

Public Service Models: A Systematic Literature Review and Synthesis. - Alexandros Gerontas; Vassilios Peristeras; Efthimios Tambouris; Eleni Kaliva; Ioannis Magnisalis; Konstantinos A. Tarabanis (IEEE Trans. Emerg. Top. Comput., 2021)