Spyropoulou, Natalia, Christos J Pierrakeas, and Achilles Kameas. 2015. “Design And Development Of A Web-Based Tool For Supporting Educators During An Instructional Design Process Based On Learning Objects”. 7th Αnnual International Conference on Education and New Learning Technologies.

Panopoulou, Chara, Christos J Pierrakeas, and Achilles Kameas. 2015. “The Extented Correllation Verb Ontology: A New Approach For Object Properties Specification Within Domain Knowledge Representation”. 11th International Conference Applied Computing.

Panopoulou, Chara, Natalia Spyropoulou, Christos J Pierrakeas, and Achilles Kameas. 2015. “Exploiting Concept Map Mining Process For E- Content Development”. 7th annual International Conference on Education and New Learning Technologies.

Giannelou, Olga, Athanasios Styliadis, and Christos Pierrakeas. 2005. “Evaluating E-Learning & Distance Learning Functionality (The Greek Experience)”.

Solomou, Georgia, Christos J Pierrakeas, and Achilles Kameas. 2015. “International Forum Of Educational Technology & Society”. Journal of Educational Technology & Society 18: 246–260.

Spyropoulou, Natalia, Gerasimoula Demopoulou, Christos J Pierrakeas, Ioannis Koutsonikos, and Achilles Kameas. 2015. “Developing A Computer Programming Mooc”. Procedia Computer Science 65: 182–191.

Solomou, Georgia, Christos J Pierrakeas, and Achilles Kameas. 2015. “Characterization Of Educational Resources In E-Learning Systems Using An Educational Metadata Profile”. Journal of Educational Technology & Society 18: 246–260.

Spyropoulou, Natalia, Ioannis Karathanasis, Christos J Pierrakeas, and Achilles Kameas. 2014. “Clarifying The Digital Content Output Formats For Mobile Learning In Higher Education”. In Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on, Interactive Mobile Communication Technologies and Learning (IMCL), 2014 International Conference on, IEEE, 139–146.

Spyropoulou, Natalia, Christos J Pierrakeas, and Achilles Kameas. 2014. “Creating Mooc Guidelines Based On Best Practices”. EDULEARN14 Proceedings: 6981–6990.

Aggelopoulou, Niki, Christos J Pierrakeas, Alexander Artikis, and Dimitris Kalles. 2014. “Ontological Modelling For Intelligent E-Learning”.