A. Drigas, S. Kouremenos, D. Kouremenos and S. Domoxoudis, Towards a conservative-with respect to queuing-simulation model for H. 261 & H. 263 Sign-Language Videoconference Traffic in Multipoint IP Sessions, In WSEAS Transactions on Systems, 2004.
A.S. Drigas, J. Vrettaros and D. Kouremenos, Teleeducation and e-learning services for teaching English as a second language to Deaf people, whose first language is the Sign Language, In WSEAS transactions on Information Science and Applications, volume 1, (Pages: 834–842), 2004.
A.S. Drigas, G. Stavridis and L. Koukianakis, A Modular Environment for E-learning and E-psychology Applications., In WSEAS Transactions on Computers, volume 3, (Pages: 2062–2067), 2004.
Athanasios S. Drigas, John Vrettaros, L. Stavrou and D. Kouremenos, E-learning Environment for Deaf People in the E-commerce and New Technologies Sector., In WSEAS Transactions on Information Science and Applications, volume 1, (Pages: 1189–1196), 2004.
A. Drigas and J. Vrettaros, An intelligent tool for building e-learning contend-material using natural language in digital libraries., In WSEAS Transactions on Information Science and Applications, volume 1, (Pages: 1197–1205), 2004.
A.S. Drigas and L. Koukianakis, E-government application for supporting a network of distributed public administration units., In WSEAS Transactions on Systems, Citeseer, volume 3, (Pages: 3336–3340), 2004.
S. Domoxoudis, S. Kouremenos, V. Loumos and A. Drigas, Measurement, modelling and simulation of videoconference traffic from VBR video encoders, In Second International Working Conference, HET-NETs, volume 4, 2004.
Y. Bakopoulos and A.S. Drigas, Inversion of a Laplace transform with applications from the study of the structure of material to the flowof Internet communications., In WSEAS Transactions on Systems, volume 3, (Pages: 3341–3344), 2004.
Peppas, K, Al-Gizawi, T, Lazarakis, F, Axiotis, D and Moussa, A, System level performance comparison of MIMO and SISO Hiperlan/2 networks., In WSEAS Transactions on Communications, volume 3, (Pages: 577–583), 2004.