@Inproceedings{kristjansson2004interactive,
  author = {Kristjansson, Trausti T. and Culotta, Aron and Viola, Paul A. and McCallum, Andrew},
  title  = {Interactive Information Extraction with Constrained Conditional Random Fields.},

  year   = {2004},
  number = {},
  url    = {http://dblp.uni-trier.de/db/conf/aaai/aaai2004.html#KristjanssonCVM04},

  const  = {\ text}
}