1. Blaxxun Contact 5. http://www.blaxxun.com/home/index.php? option=com_content&task=view&id=42&Itemid=85
2. Boutsis S., Prokopidis P., Giouli V., Piperidis S.: A robust parser for unrestricted Greek text. In: Proceedings of the 2nd International Conference on Language Resources and Evaluation, LREC 2000, Athens, pp. 467–473 (2000)
3. Carpenter B.: The Logic of Typed Feature Structures. Cambridge University Press, London (1992)
4. Chen, Y., Gao, W., Fang, G., Wang, Z., Yang, C., Jiang, D.: Text to Avatar in Multi-modal Human Computer Interface. In: Proceedings of Asia-Pacific CHI (APCHI2002) (2002)
5. De Rosis, F., Pelachaud, C., Poggi, I., Carofiglio, V., De Carolis, B.: From Greta’s mind to her face: modelling the dynamics of affective states in a conversational embodied agent. Int. J. Hum. Comput. Stud. 59 (1–2), 81–118 (2003)