@book {3,
	title = {3rd Hellenic Conference on Artificial Intelligence, Proceedings Companion Volume},
	year = {2004},
	publisher = {ZITI Publications},
	organization = {ZITI Publications},
	address = {Samos},
	isbn = {ISBN 960-431-910-8},
	author = {G. Vouros and T.Panayiotopoulos}
}
