@conference {pierrakeas2013correlation, title = {A correlation verb (CorrVerb) ontology for object properties specification within knowledge domain representations}, booktitle = {Proceedings of the 6th Balkan Conference in Informatics}, year = {2013}, pages = {195{\textendash}200}, publisher = {ACM}, organization = {ACM}, author = {Christos J. Pierrakeas and Panagiotopoulos, Ioannis and Kameas, Achilles} } @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} } @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} }