C.  Bouras, Gkamas, A., Tsiatsos, T., Destounis, P., Garofalakis, J., Sakalis, G., Sakopoulos, B., and Tsaknakis, J., ?Efficient Web-Based Open and Distance Learning Services?, Journal of Telematics and Informatics, Elsevier Science, Vol. 17, Issue 3, pp.  213 - 237, 2000.

C.  Bouras, Gkamas, A., Tsiatsos, T., Destounis, P., Garofalakis, J., Sakalis, G., Sakopoulos, B., and Tsaknakis, J., ?Efficient Data Management to support Educational Activities?, in Interactive Computer aided Learning-Tools and Applications-ICL 99,Villach, Austria, 1999.

C.  Bouras, Spirakis, P., Triantafillou, V., Garofalakis, J., Tsaknakis, J., Tzimas, J., Tsakalidis, A., Antoniou, I., Karageorgopoylos, D., Basiliadis, B., and Kappos, P., ?The Design and Development of Advanced Network Services over the Patras University Campus Network?, in 5th International Conference on Computers in Education-ICCE 97, Sarawak, Malaysia, 1997, pp.  420 - 427.