| 77 | -- | 0 | . Guest editorial |
| 79 | -- | 95 | Kalliopi Tourtoglou, Maria Virvou. An intelligent recommender system for trainers and trainees in a collaborative learning environment for UML |
| 97 | -- | 104 | Dimitrios Tsolis, Paraskevi Christia, Soultana Kampana, Eleftherios Polychronopoulos, Aglaia Liopa, Athanasios K. Tsakalidis. OWLearn: An open source e-learning platform supporting adaptivity and personalization |
| 105 | -- | 111 | Silke Schworm, Klaus D. Stiller. Does personalization matter? The role of social cues in instructional explanations |
| 113 | -- | 121 | Martin Stigmar, Rune Körnefors, Nicholas Pagden. The modified role of university teachers in ICT-supported flexible learning |
| 123 | -- | 137 | George Anastassakis, Themis Panayiotopoulos. A unified model for representing objects with physical properties, semantics and functionality in virtual environments |
| 139 | -- | 149 | Nektarios Kostaras, Michalis Nik Xenos. Usability evaluation of Augmented Reality systems |
| 151 | -- | 159 | James P. Bliss, Rachel Liebman, J. Christopher Brill. Alert characteristics and identification of avatars on a virtual battlefield |
| 161 | -- | 169 | Michal Lech, Bozena Kostek, Andrzej Czyzewski. Virtual Whiteboard: A gesture-controlled pen-free tool emulating school whiteboard |
| 171 | -- | 176 | Katarzyna Kaszuba, Bozena Kostek. A new approach for automatic assessment of a neurological condition employing hand gesture classification |
| 177 | -- | 185 | Adam Kupryjanow, Andrzej Czyzewski. Improved method for real-time speech stretching |