@Inproceedings{krause2008antisocialb,
  author = {Krause, Beate and Schmitz, Christoph and Hotho, Andreas and Stumme, Gerd},
  title  = {The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems},

  year   = {2008},
  number = {},
  url    = {http://airweb.cse.lehigh.edu/2008/submissions/krause_2008_anti_social_tagger.pdf},

  const  = {\ text}
}
@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}
}