@Inproceedings{doerfel2013analysis,
  author = {Doerfel, Stephan and Jäschke, Robert},
  title  = {An Analysis of Tag-Recommender Evaluation Procedures},

  year   = {2013},
  number = {},
  url    = {http://doi.acm.org/10.1145/2507157.2507222},
  doi = {10.1145/2507157.2507222},
  const  = {\ text}
}
@Inproceedings{doerfel2013analysis,
  author = {Doerfel, Stephan and Jäschke, Robert},
  title  = {An analysis of tag-recommender evaluation procedures},

  year   = {2013},
  number = {},
  url    = {https://www.kde.cs.uni-kassel.de/pub/pdf/doerfel2013analysis.pdf},
  doi = {10.1145/2507157.2507222},
  const  = {\ text}
}
@Inproceedings{mitzlaff2010community,
  author = {Mitzlaff, Folke and Atzmüller, Martin and Benz, Dominik and Hotho, Andreas and Stumme, Gerd},
  title  = {Community Assessment using Evidence Networks},

  year   = {2010},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/ws/muse2010},

  const  = {\ text}
}
@Inproceedings{mitzlaff2010community,
  author = {Mitzlaff, Folke and Atzmüller, Martin and Benz, Dominik and Hotho, Andreas and Stumme, Gerd},
  title  = {Community Assessment using Evidence Networks},

  year   = {2010},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/ws/muse2010},

  const  = {\ text}
}