@article(2002-applying-dialogue-constraints-to-the-understanding-process-in-a-dialogue-system,
  author = {Emilio Sanchis Arnal and Fernando García Granada and Isabel Remedios Galiano Ronda and Encarna Segarra Soriano},
  title = {Applying dialogue constraints to the understanding process in a Dialogue system},
  year = {2002},
  journal = {Lecture Notes in Computer Science},
  number = {2448},
  pages = {389-395}
)