1. Where Do They Look? Gaze Behaviors of Multiple Users Interacting with an Embodied Conversational Agent;André,2005
2. Evaluating affective feedback of the 3D agent Max in a competitive cards game;Becker,2005
3. Bolt, R.A., 1998a. “Put-That-There”: Voice and Gesture at the Graphics Interface, Readings in intelligent user interfaces. Morgan Kaufmann, pp. 19.
4. Bolt, R.A., 1998b. Plan-Based Integration of Natural Language and Graphics Generation, Readings in intelligent user interfaces. Morgan Kaufmann, pp. 109.
5. Emotion in the Human Face;Ekman,1982