Osvaldo da Pos and Paul Green-Armytage, Facial Expressions, Colours and Basic Emotions,
Colour: Design & Creativity (1) (2007) 2: 1–20.
URL: http://www.colour-journal.org/2007/1/2/
Colour: Design & Creativity (1) (2007) 2: 1–20.
URL: http://www.colour-journal.org/2007/1/2/