1. Ai, H., Litman, D.J., Forbes-Riley, K., Rotaru, M., Tetreault, J., Purandare, A.: Using system and user performance features to improve emotion detection in spoken tutoring dialogs. In: Proceedings of the International Conference on Spoken Language Processing (Interspeech 2006—ICSLP), pp. 797–800. Pittsburgh (2006)
2. Ang, J., Dhillon, R., Krupski, A., Shriberg, E., Stolcke, A.: Prosody-based automatic detection of annoyance and frustration in human-computer dialog. In: Proceedings of the International Conference on Spoken Language Processing (Interspeech 2002—ICSLP), pp. 2037–2040. Denver, (2002)
3. Batliner A. and Möbius B. (2005). Prosodic models, automatic speech understanding and speech synthesis: towards the common ground?. In: Barry, W. and Dommelen, W. (eds) The Integration of Phonetic Knowledge in Speech Technology, pp 21–44. Springer, Dordrecht
4. Batliner, A., Fischer, K., Huber, R., Spilker, J., Nöth, E.: Desperately seeking emotions: actors, wizards, and human beings. In: Proceedings of the ISCA Workshop on Speech and Emotion, pp. 195–200. Newcastle (2000a)
5. Batliner A., Huber R., Niemann H., Nöth E., Spilker J. and Fischer K. (2000b). The recognition of emotion. In: Wahlster, W. (eds) Verbmobil: Foundations of Speech-to-Speech Translations, pp 122–130. Springer, Berlin