@incollection{DBLP:books/sp/staabS2004/MiddletonRS04,
  author    = {Stuart E. Middleton and
               David De Roure and
               Nigel R. Shadbolt},
  title     = {Ontology-based Recommender Systems},
  booktitle = {Handbook on Ontologies},
  year      = {2004},
  pages     = {577-498},
  crossref  = {DBLP:books/sp/StaabS04},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@book{DBLP:books/sp/StaabS04,
  editor    = {Steffen Staab and
               Rudi Studer},
  title     = {Handbook on Ontologies},
  booktitle = {Handbook on Ontologies},
  publisher = {Springer},
  series    = {International Handbooks on Information Systems},
  year      = {2004},
  isbn      = {3-540-40834-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}