@Article{lerch2010datenschutz,
  author = {Lerch, Hana and Krause, Beate and Hotho, Andreas and Roßnagel, Alexander and Stumme, Gerd},
  title  = {Social Bookmarking-Systeme – die unerkannten Datensammler - Ungewollte personenbezogene Datenverabeitung?},
  journal = {MultiMedia und Recht},
  year   = {2010},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{benz2009managing,
  author = {Benz, Dominik and Eisterlehner, Folke and Hotho, Andreas and Jäschke, Robert and Krause, Beate and Stumme, Gerd},
  title  = {Managing publications and bookmarks with BibSonomy},

  year   = {2009},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/pub/pdf/benz2009managing.pdf},
  doi = {10.1145/1557914.1557969},
  const  = {\ text}
}