| Creating Test Questions for 3D Collaborative Virtual Worlds: the WorldOfQuestions Authoring Environment. | 2 | 0.45 | 2012 |
| Design and Implementation of a 3D Multi-User Virtual World for Language Learning. | 7 | 0.58 | 2011 |
| Multi-User 3D Virtual Environment for Spanish Learning: A Wonderland Experience | 1 | 0.44 | 2010 |
