@InProceedings{williams-power:2009:ENLG,
  author    = {Williams, Sandra  and  Power, Richard},
  title     = {Precision and Mathematical Form in First and Subsequent Mentions of Numerical Facts and their Relation to Document Structure},
  booktitle = {Proceedings of the 12th European Workshop on Natural Language Generation (ENLG 2009)},
  month     = {March},
  year      = {2009},
  address   = {Athens, Greece},
  publisher = {Association for Computational Linguistics},
  pages     = {118--121},
  url       = {http://www.aclweb.org/anthology/W09-0620}
}