@article(2005-multilingual-question-classification-based-on-surface-text-features,
  author = {Empar Bisbal and Lidia Ana Moreno Boronat},
  title = {Multilingual Question Classification based on surface text features},
  year = {2005},
  journal = {Frontiers in Artificial Intelligence and Applications},
  volume = {131},
  pages = {255-261}
)