@InCollection{CraswellH09,
  author =       {Nick Craswell and David Hawking},
  title =        {Web Information Retrieval},
  booktitle =    {Information Retrieval: Searching in the 21st Century},
  pages =     {85--101},
  year = 2009,
  publisher = {Wiley},
  address = {UK},
  editor =    {Ayse G\"{o}ker and John Davies},
  note = 	 {\url{https://david-hawking.net/pubs/craswell-hawking_09_chapter.pdf}}
}