C. Munteanu, G. Penn, und R. Baecker. Proc. of 10th European Conference on Speech Communication and Technology - EuroSpeech / 8th INTERSPEECH, Antwerp, Belgium,, (August 2007)
J. Glass, T. Hazen, D. Cyphers, K. Schutte, und A. Park. Proceedings of HLT/EMNLP on Interactive Demonstrations, Seite 28--29. Morristown, NJ, USA, Association for Computational Linguistics, (2005)