@InProceedings{pizzato-molla:2008:IR4QA,
  author    = {Pizzato, Luiz Augusto  and  Moll\'a, Diego},
  title     = {Indexing on Semantic Roles for Question Answering},
  booktitle = {Coling 2008: Proceedings of the 2nd workshop on Information Retrieval for Question Answering},
  month     = {August},
  year      = {2008},
  address   = {Manchester, UK},
  publisher = {Coling 2008 Organizing Committee},
  pages     = {74--81},
  url       = {http://www.aclweb.org/anthology/W08-1810}
}