@article(2008-a-statistical-approach-to-spoken-dialog-system-design-and-evaluation,
  author = {David Griol Barres and Lluís Felip Hurtado Oliver and Encarna Segarra Soriano and Emilio Sanchis Arnal},
  title = {A Statistical Approach to Spoken Dialog System Design and Evaluation},
  year = {2008},
  journal = {SPEECH COMMUNICATION},
  volume = {50},
  number = {8-9},
  pages = {666-682},
  doi = {10.1016/j.specom.2008.04.001}
)