Usability of Speech Dialog Systems
MLA
Hempel, and Thomas Hempel. Usability of Speech Dialog Systems. Springer Berlin Heidelberg, 2008.
APA
Hempel, H., & Hempel, T. (2008). Usability of Speech Dialog Systems. Springer Berlin Heidelberg.
Chicago
Hempel, and Thomas Hempel. Usability of Speech Dialog Systems. : Springer Berlin Heidelberg, 2008.