@inbook {panagiotopoulos2012ontological,
	title = {An Ontological Approach for Domain Knowledge Modeling and Management in E-Learning Systems},
	booktitle = {Artificial Intelligence Applications and Innovations},
	year = {2012},
	pages = {95{\textendash}104},
	publisher = {Springer},
	organization = {Springer},
	author = {Panagiotopoulos, Ioannis and Kalou, Aikaterini and Christos J. Pierrakeas and Kameas, Achilles}
}
@conference {kalou2012ontology,
	title = {An Ontology Model for Building, Classifying and Using Learning Outcomes},
	booktitle = {Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on},
	year = {2012},
	pages = {61{\textendash}65},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Kalou, Aikaterini and Solomou, Georgia and Christos J. Pierrakeas and Kameas, Achilles}
}
@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}
}
