@misc{153766,
  author = {Ellen Voorhees and Donna Harman},
  title = {The Tenth Text Retrieval Conference, TREC- 2001},
  year = {2002},
  month = {2002-04-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}