Perceptual Validity in Animation of Human Motion
Journal Article: Computer Animation and Virtual Worlds Journal, March 2016
27(1), 58-71. doi: 10.1002/cav.1631

Wiley Online Library

Perceptually Valid Facial Expressions for Character-based Applications
Journal Article: International Journal of Computer Games Technology, 2009
Vol 2009, Article ID 462315, pp 1-13