@inproceedings{culotta-sorensen:2004:ACL,
  author    = {Culotta, Aron  and  Sorensen, Jeffrey},
  title     = {Dependency Tree Kernels for Relation Extraction},
  booktitle = {Proceedings of the 42nd Meeting of the Association for Computational Linguistics (ACL'04), Main Volume},
  year      = 2004,
  month     = {July},
  address   = {Barcelona, Spain},
  pages     = {423--429},
  url       = {http://www.aclweb.org/anthology/P04-1054},
  doi       = {10.3115/1218955.1219009}
}