@InProceedings{PhanBW07,
  author =       {Nina Phan and Peter Bailey and Ross Wilkinson},
  title =        {Understanding the Relationship of Information Need Specificity to Search Query Length},
  booktitle =    {Proceedings of ACM SIGIR 2007},
  pages =        {709--710},
  location =     {Amsterdam, Netherlands},
  year =         2007,
  month =        {July},
  note =         {\url{http://es.csiro.au/pubs/phan-bailey-sigir_2007.pdf}}
}