1. Aarons, M., Gittens, T.: Autism: A social skills approach for children and adolescents. Winslow Press, Oxford (1998)
2. Argyle, M.: Bodily Communication, 2nd edn. Methuen, New York (1988)
3. Bailenson, J., Blascovich, J.: Avatars. Encyclopedia of HCI. Berkshire, pp. 64–68 (2004)
4. CSCW Series;J. Blascovich,2002
5. Cheng, Y.: An avatar representation of emotion in collaborative virtual environment technology for people with autism. PhD thesis, Leeds Metropolitan University, UK (2005)