Evaluation of location area planning scenarios in future mobile telecommunication systems. - John G. Markoulidakis; George L. Lyberopoulos; Dimitrios F. Tsirkas; Eystathios D. Sykas (Wirel. Networks, 1995)

Inter-operator roaming scenarios for third generation mobile telecommunication systems. - John G. Markoulidakis; George L. Lyberopoulos; Dimitrios F. Tsirkas; Efstathios D. Sykas (ISCC, 1997)

The average number of handovers per call in satellite UMTS systems. - John G. Markoulidakis; Dimitrios F. Tsirkas; Michael E. Theologou (ISCC, 1997)

Mobility modeling in third-generation mobile telecommunications systems. - John G. Markoulidakis; George L. Lyberopoulos; Dimitrios F. Tsirkas; Efstathios D. Sykas (IEEE Wirel. Commun., 1997)