@book{manning2008,
  author = {Manning, C. D. and Raghavan, P. and Schütze, H.},
  title = {Introduction to Information Retrieval},
  publisher = {Cambridge University Press},
  year = {2008},
  url = {http://www-csli.stanford.edu/~hinrich/information-retrieval-book.html}
}

@book{ferber2003information,
  author = {Ferber, Reginald},
  title = {Information Retrieval: Suchmodelle und Data-Mining-Verfahren für Textsammlungen und das Web},
  publisher = {dpunkt Verlag},
  year = {2003},
  url = {http://information-retrieval.de/}
}

@book{ferber2003information,
  author = {Ferber, Reginald},
  title = {Information Retrieval: Suchmodelle und Data-Mining-Verfahren für Textsammlungen und das Web},
  publisher = {dpunkt Verlag},
  year = {2003},
  url = {http://information-retrieval.de/}
}

@book{books/aw/Baeza-YatesR99,
  author = {Baeza-Yates, Ricardo A. and Ribeiro-Neto, Berthier A.},
  title = {Modern Information Retrieval},
  publisher = {ACM Press / Addison-Wesley},
  year = {1999},
  url = {http://www.ischool.berkeley.edu/~hearst/irbook/glossary.html}
}

@book{books/aw/Baeza-YatesR99,
  author = {Baeza-Yates, Ricardo A. and Ribeiro-Neto, Berthier A.},
  title = {Modern Information Retrieval},
  publisher = {ACM Press / Addison-Wesley},
  year = {1999},
  url = {http://www.ischool.berkeley.edu/~hearst/irbook/glossary.html}
}

@book{books/mk/WittenMB99,
  author = {Witten, Ian H. and Moffat, Alistair and Bell, Timothy C.},
  title = {Managing Gigabytes: Compressing and Indexing Documents and Images, Second Edition},
  publisher = {Morgan Kaufmann},
  year = {1999},
  url = {http://www.cs.mu.oz.au/mg/}
}

@book{rijsbergen79information,
  author = {van Rijsbergen, C. J.},
  title = {Information retrieval},
  publisher = {Butterworths},
  year = {1979},
  edition = {2},
  url = {http://www.dcs.gla.ac.uk/Keith/Preface.html}
}