@Incollection{cimiano2004conceptual,
  author = {Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien},
  title  = {Conceptual Knowledge Processing with Formal Concept
                   Analysis and Ontologies},

  year   = {2004},
  number = {},
  url    = {http://dx.doi.org/10.1007/978-3-540-24651-0_18},

  const  = {\ text}
}
@Inproceedings{cimiano2004concept,
  author = {Cimiano, Philipp and Hotho, Andreas and Stumme, Gerd and Tane, Julien},
  title  = {Conceptual Knowledge Processing with Formal Concept Analysis and Ontologies},

  year   = {2004},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2004/cimiano2004concept.pdf},

  const  = {\ text}
}
@Inproceedings{stumme2004iceberg,
  author = {Stumme, Gerd},
  title  = {Iceberg Query Lattices for Datalog},

  year   = {2004},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2004/stumme2004iceberg.pdf},

  const  = {\ text}
}
@Inproceedings{tane04semantic,
  author = {Tane, Julien and Schmitz, Christoph and Stumme, Gerd},
  title  = {Semantic resource management for the web: an e-learning application},

  year   = {2004},
  number = {},
  url    = {http://www.www2004.org/proceedings/docs/2p1.pdf},

  const  = {\ text}
}