Persona Effect Revisited. - Helmut Prendinger; Sonja Mayer; Junichiro Mori; Mitsuru Ishizuka (IVA, 2003)

Empathic Embodied Interfaces: Addressing Users' Affective State: Embodied Interfaces That Address Users' Physiological State. - Helmut Prendinger; Hiroshi Dohi; Hua Wang; Sonja Mayer; Mitsuru Ishizuka (ADS, 2004)

Scripting and Evaluating Affective Interactions with Embodied Conversational Agents. - Helmut Prendinger; Junichiro Mori; Santi Saeyor; Kyoshi Mori; Naoaki Okazaki; Yustinus Juli; Sonja Mayer; Hiroshi Dohi; Mitsuru Ishizuka (Künstliche Intell., 2004)