@misc{22176,
  author = {Hoa Dang and Diane Kelly and Jimmy Lin},
  title = {Overview of the TREC 2007 Question Answering Track},
  year = {2008},
  month = {2008-12-01},
  publisher = {Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=890018},
  language = {en},
}