@Inproceedings{benz2006automatic,
  author = {Benz, Dominik and Tso, Karen H. L. and Schmidt-Thieme, Lars},
  title  = {Automatic Bookmark Classification - A Collaborative Approach},

  year   = {2006},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/pub/pdf/benz2006automatic.pdf},

  const  = {\ text}
}
@Inproceedings{hotho2006emergent,
  author = {Hotho, Andreas and Jäschke, Robert and Schmitz, Christoph and Stumme, Gerd},
  title  = {Emergent Semantics in BibSonomy},

  year   = {2006},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2006/hotho2006emergent.pdf},

  const  = {\ text}
}
@Inproceedings{hotho2006trend,
  author = {Hotho, Andreas and Jäschke, Robert and Schmitz, Christoph and Stumme, Gerd},
  title  = {Trend Detection in Folksonomies},

  year   = {2006},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2006/hotho2006trend.pdf},

  const  = {\ text}
}