@proceedings {26083,
	title = {From the Designing to the Evaluation of a Tutorail: the Case of the Module GAL50 in the Hellenic Open University},
	journal = {3rd International conference on Open and Distance Learning: Applications of Pedagogy and Technology},
	volume = {B},
	year = {2005},
	pages = {174-183},
	address = {Patra, Greece},
	author = {George Androulakis and Eirini Apostolou and Marina Vihou and Sofia Lahlou}
}
