D. Sonntag, R. Neßelrath, G. Sonnenberg, and G. Herzog. Paper presented at the First International Workshop on Spoken Dialogue Systems Technology (IWSDS-2009), Kloster Irsee, Germany, (December 2009)Available from http://www.dfki.de/web/forschung/publikationen?pubid=4673.
E. Lee. Proceedings of the 11th IEEE International Symposium on Object Oriented Real-Time Distributed Computing (ISORC '08), Orlando, FL, USA, page 363-369. (2008)