@inbook {panagiotopoulos2012ontology,
	title = {An Ontology-Based Model for Student Representation in Intelligent Tutoring Systems for Distance Learning},
	booktitle = {Artificial Intelligence Applications and Innovations},
	year = {2012},
	pages = {296{\textendash}305},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	author = {Panagiotopoulos, Ioannis and Kalou, Aikaterini and Christos J. Pierrakeas and Kameas, Achilles}
}
