An Expert System for Multiple Emotional Classification of Facial Expressions.

Maja Pantic Léon J. M. Rothkrantz An Expert System for Multiple Emotional Classification of Facial Expressions. 113-120 1999 ICTAI http://computer.org/proceedings/ictai/0456/04560113abs.htm db/conf/ictai/ictai1999.html#PanticR99