@InProceedings{BalogVVVVSTW09,
  author = 	 {Kristian Balog and Arjen P de Vries and Pavel Serdyukov and Paul Thomas and Thijs Westerveld},
  title = 	 {Overview of the TREC 2009 Entity Track},
  booktitle = {The Eighteenth Text Retrieval Conference (TREC) Proceedings},
  year =         2009,
  address = 	 {Gaithersburg, USA},
  note = 	 {\url{http://es.csiro.au/pubs/balog-trec09.pdf}}
}