@article(2008-a-two-phases-statistical-approach-for-dialog-management,
  author = {David Griol Barres and Lluís Felip Hurtado Oliver and Encarna Segarra Soriano and Emilio Sanchis Arnal},
  title = {A Two Phases Statistical Approach for Dialog Management},
  year = {2008},
  journal = {Lecture Notes in Computer Science},
  pages = {60-71}
)