@misc{154071,
  author = {Ellen Voorhees and Lori Buckland},
  title = {The Twelfth Text Retrieval Conference, TREC 2003},
  year = {2004},
  month = {2004-05-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}