@article {xenos2004assessing,
	title = {Assessing the quality of web sites used in higher open distance education courses},
	journal = {Education, Communication \& Information},
	volume = {4},
	number = {2-3},
	year = {2004},
	pages = {237{\textendash}253},
	publisher = {Taylor \& Francis},
	author = {Xenos, Michalis and Dermitzioti, Evgenia and Christos J. Pierrakeas}
}
