Comparing Emotional vs. Envelope Feedback for ECAs. - Astrid M. von der Pütten; Christian Reipen; Antje Wiedmann; Stefan Kopp; Nicole C. Krämer (IVA, 2008)

The Impact of Different Embodied Agent-Feedback on Users' Behavior. - Astrid M. von der Pütten; Christian Reipen; Antje Wiedmann; Stefan Kopp; Nicole C. Krämer (IVA, 2009)