On the Electronic Collaboration of SMEs: A Case Study. - Efthimios Tambouris; Stathes Hadjiefthymiades; Elias Spanos; A. Michalakopoulos; C. Makropoulos (DEXA Workshop, 1998)

European Cities Platform for Online Transaction Services: The EURO-CITI Project. - Stelios Gorilas; Anastasios Ioannidis; Gema Lopez Gomar; Elias Spanos; Efthimios Tambouris (Bled eConference, 2001)

EURO-CITI Tele-Voting: An Application for Realizing Opinion Poll Petitions. - Stelios Gorilas; Dionisis Hoholis; Marios Sintichakis; Elias Spanos; Efthimios Tambouris (Bled eConference, 2002)

An Architecture for Integrated Public Service Delivery based on Life-events. - Efthimios Tambouris; Elias Spanos (Electron. Mark., 2002)