@InProceedings{balahur-EtAl:2009:Short,
  author    = {Balahur, Alexandra  and  Boldrini, Ester  and  Montoyo, Andr\'{e}s  and  Mart\'{i}nez-Barco, Patricio},
  title     = {Opinion and Generic Question Answering Systems: a Performance Analysis},
  booktitle = {Proceedings of the ACL-IJCNLP 2009 Conference Short Papers},
  month     = {August},
  year      = {2009},
  address   = {Suntec, Singapore},
  publisher = {Association for Computational Linguistics},
  pages     = {157--160},
  url       = {http://www.aclweb.org/anthology/P/P09/P09-2040}
}