@Article{atzmueller2011enhancing,
  author = {Atzmueller, Martin and Benz, Dominik and Doerfel, Stephan and Hotho, Andreas and Jäschke, Robert and Macek, Bjoern Elmar and Mitzlaff, Folke and Scholz, Christoph and Stumme, Gerd},
  title  = {Enhancing Social Interactions at Conferences},
  journal = {Information Technology},
  year   = {2011},
  number = {3},
  url    = {http://www.oldenbourg-link.com/doi/abs/10.1524/itit.2011.0631},
  doi = {10.1524/itit.2011.0631},
  const  = {\ text}
}
@Incollection{marinho2011social,
  author = {Balby Marinho, Leandro and Nanopoulos, Alexandros and Schmidt-Thieme, Lars and Jäschke, Robert and Hotho, Andreas and Stumme, Gerd and Symeonidis, Panagiotis},
  title  = {Social Tagging Recommender Systems},

  year   = {2011},
  number = {},
  url    = {http://dx.doi.org/10.1007/978-0-387-85820-3_19},
  doi = {10.1007/978-0-387-85820-3_19},
  const  = {\ text}
}
@Article{burke2011recommendation,
  author = {Burke, Robin and Gemmell, Jonathan and Hotho, Andreas and Jäschke, Robert},
  title  = {Recommendation in the Social Web},
  journal = {AI Magazine},
  year   = {2011},
  number = {3},
  url    = {http://www.aaai.org/ojs/index.php/aimagazine/article/view/2373},

  const  = {\ text}
}
@Inproceedings{illig2009comparison,
  author = {Illig, Jens and Hotho, Andreas and Jäschke, Robert and Stumme, Gerd},
  title  = {A Comparison of Content-Based Tag Recommendations in Folksonomy Systems},

  year   = {2011},
  number = {},
  url    = {http://dx.doi.org/10.1007/978-3-642-22140-8_9},
  doi = {10.1007/978-3-642-22140-8_9},
  const  = {\ text}
}
@Book{jaeschke2011formal,
  author = {Jäschke, Robert},
  title  = {Formal Concept Analysis and Tag Recommendations in Collaborative Tagging Systems},

  year   = {2011},
  number = {},
  url    = {http://www.aka-verlag.com/de/detail?ean=978-3-89838-332-5},

  const  = {\ text}
}
@Inproceedings{navarrobullock2011tagging,
  author = {Navarro Bullock, Beate and Jäschke, Robert and Hotho, Andreas},
  title  = {Tagging data as implicit feedback for learning-to-rank},

  year   = {2011},
  number = {},
  url    = {http://journal.webscience.org/463/},

  const  = {\ text}
}
@Proceedings{valtchev2011formal,

  title  = {Formal Concept Analysis},

  year   = {2011},
  number = {},
  url    = {http://www.springer.com/computer/ai/book/978-3-642-20513-2},
  doi = {10.1007/978-3-642-20514-9_2},
  const  = {\ text}
}