Mobility management for multicast sessions in a UMTS-IP converged environment. - Georgios Leoleis; Lila Dimopoulou; Vaggelis Nikas; Iakovos S. Venieris (ISCC, 2004)

Unified signalling using SIP in a B3G system. - Georgios V. Lioudakis; Vaggelis Nikas; Christoph Pollak; Richard Wisenöcker; Nikos Delias; Iakovos S. Venieris (PIMRC, 2005)

Evolving UMTS towards IP: Evaluation of the SIPRAN Architecture. - Vaggelis Nikas; Georgios V. Lioudakis; Nikolaos L. Dellas; Iakovos S. Venieris; Dimitra I. Kaklamani; Christoph Pollak; Richard Wisenoecker (ICC, 2006)

SIP as a unified signalling solution in a beyond 3G system. - Vaggelis Nikas; Georgios V. Lioudakis; Nikolaos L. Dellas; Iakovos S. Venieris; Christoph Pollak; Richard Wisenoecker (Comput. Commun., 2006)