An Educational Community Using Collaborative Virtual Environments. - Christos Bouras; Dimitrios Psaltoulis; Christos Psaroudis; Thrasyvoulos Tsiatsos (ICWL, 2002)

Multi-User Layer in the EVE Distributed Virtual Reality Platform. - Christos Bouras; Dimitrios Psaltoulis; Christos Psaroudis; Thrasyvoulos Tsiatsos (ICDCS Workshops, 2003)

Decentralized Schemes for Size Estimation in Large and Dynamic Groups. - Dionysios Kostoulas; Dimitrios Psaltoulis; Indranil Gupta; Ken Birman; Alan J. Demers (NCA, 2005)

Active and passive techniques for group size estimation in large-scale and dynamic distributed systems. - Dionysios Kostoulas; Dimitrios Psaltoulis; Indranil Gupta; Kenneth P. Birman; Alan J. Demers (J. Syst. Softw., 2007)