@book{staab2009handbook,
  abstract = {An ontology is a formal description of concepts and relationships that can exist for a community of human and/or machine agents. This book considers ontology languages, ontology engineering methods, example ontologies, infrastructures and technologies for ontologies, and how to bring this all into ontology-based infrastructures and applications.},
  address = {Berlin},
  author = {Staab, Steffen and Studer, Rudi},
  interhash = {c2e7c401bef2cee2bb8b12334d3c7a88},
  intrahash = {be122d99dc6dd20cb58a55d62d8eca6c},
  isbn = {9783540926733 3540926739},
  publisher = {Springer},
  refid = {569892085},
  title = {Handbook on ontologies},
  url = {http://public.eblib.com/choice/publicfullrecord.aspx?p=571805},
  year = 2009
}

@book{reference/rsh/2011,
  booktitle = {Recommender Systems Handbook},
  editor = {Ricci, Francesco and Rokach, Lior and Shapira, Bracha and Kantor, Paul B.},
  ee = {http://www.springerlink.com/content/978-0-387-85819-7},
  interhash = {fc9c45535069f00807f784abdd939d9f},
  intrahash = {49d1b9115124c64075d6c2c559504b22},
  isbn = {978-0-387-85819-7},
  publisher = {Springer},
  title = {Recommender Systems Handbook},
  url = {http://dblp.uni-trier.de/db/reference/rsh/rsh2011.html},
  year = 2011
}

@proceedings{Staab2004HOO,
  address = {Berlin; New York},
  booktitle = {International handbooks on information systems},
  editor = {Staab, Steffen and Studer, Rudi},
  interhash = {494a7427b9dd11496d824c824b35938b},
  intrahash = {f920f0aabbe7a02c9fe5d65c298bc8ea},
  issn = {3540408347  9783540408345},
  pages = {--},
  publisher = {Springer},
  refid = {53814725},
  title = {Handbook on ontologies},
  year = 2004
}