Media type: E-Article Title: Persuasive Technology: What Makes Social Feedback from a Robot Work? Disentangling the Effect of Speech, Physical Appearance and Evaluation Contributor: Vossen, Suzanne; Ham, Jaap; Midden, Cees Published: Springer Berlin Heidelberg, 2010 Published in: Persuasive Technology (2010), Seite 52-57 Language: Not determined DOI: 10.1007/978-3-642-13226-1_7 ISBN: 9783642132254; 9783642132261 ISSN: 0302-9743; 1611-3349 Origination: Footnote: