1. Bernsen NO, Dybkjær H, Dybkjær L (1998) Designing Interactive Speech Systems: From First Ideas to User Testing. Springer, Berlin
2. Billi R, Castagneri G, Danieli M (1996) Field trial evaluations of two different information inquiry systems. In: Proc. 3rd IEEE Workshop on Interactive Voice Technology for Telecommunications Applications (IVTTA’96), Basking Ridge NJ, S 129–134
3. Bimbot F, Chollet G (1997) Handbook on Standards and Resources for Spoken Language Systems, Mouton de Gruyter, Berlin, Kapitel Assessment of Speaker Verification Systems, S 408–480
4. Boros M, Eckert W, Gallwitz F, Görz G, Hanrieder G, Niemann H (1996) Towards understanding spontaneous speech: Word accuracy vs. concept accuracy. In: Bunnell H, Idsardi W (Hrsg) Proc. 4th Int. Conf. on Spoken Language Processing (ICSLP’96), IEEE, Piscataway NJ, Vol 2, S 1009–1012
5. Carletta J (1996) Assessing agreement on classification tasks: The kappa statistics. Computational Linguistics 22(2):249–254