@inproceedings(2004-dialogue-act-classification-using-a-bayesian-approach,
  author = {Sergio Grau and Emilio Sanchis Arnal and María José Castro Bleda and David Vilar},
  title = {Dialogue act classification using a Bayesian approach},
  year = {2004},
  booktitle = {International Conference on Speech and Computer (SPECOM)},
  address = {San Petersburgo, Rusia},
  pages = {495-499}
)