@Inproceedings{1454053,
  author = {Bogers, Toine and van den Bosch, Antal},
  title  = {Recommending scientific articles using citeulike},

  year   = {2008},
  number = {},
  url    = {http://portal.acm.org/citation.cfm?id=1454053},
  doi = {http://doi.acm.org/10.1145/1454008.1454053},
  const  = {\ text}
}
@Inproceedings{heymann2008social,
  author = {Heymann, Paul and Ramage, Daniel and Garcia-Molina, Hector},
  title  = {Social tag prediction},

  year   = {2008},
  number = {},
  url    = {http://portal.acm.org/citation.cfm?id=1390334.1390425},
  doi = {http://doi.acm.org/10.1145/1390334.1390425},
  const  = {\ text}
}
@Inproceedings{1454017,
  author = {Symeonidis, Panagiotis and Nanopoulos, Alexandros and Manolopoulos, Yannis},
  title  = {Tag recommendations based on tensor dimensionality reduction},

  year   = {2008},
  number = {},
  url    = {http://portal.acm.org/citation.cfm?id=1454017},
  doi = {http://doi.acm.org/10.1145/1454008.1454017},
  const  = {\ text}
}
@Inproceedings{1502661,
  author = {Vig, Jesse and Sen, Shilad and Riedl, John},
  title  = {Tagsplanations: explaining recommendations using tags},

  year   = {2008},
  number = {},
  url    = {http://portal.acm.org/citation.cfm?id=1502650.1502661},
  doi = {http://doi.acm.org/10.1145/1502650.1502661},
  const  = {\ text}
}
@Article{ieKey,
  author = {Höhfeld, Stefanie and Kwiatkowski, Melanie},
  title  = {Empfehlungssysteme aus informationswissenschaftlicher Sicht-State of the Art},
  journal = {IWP-Information Wissenschaft & Praxis},
  year   = {2007},
  number = {5},
  url    = {http://wwwalt.phil-fak.uni-duesseldorf.de/infowiss/admin/public_dateien/files/58/1189509550empfehlung.pdf},

  const  = {\ text}
}
@Inproceedings{1128138,
  author = {Niwa, Satoshi and Doi, Takuo and Honiden, Shinichi},
  title  = {Web Page Recommender System based on Folksonomy Mining},

  year   = {2006},
  number = {},
  url    = {http://portal.acm.org/citation.cfm?id=1128138},
  doi = {http://dx.doi.org/10.1109/ITNG.2006.140},
  const  = {\ text}
}
@Article{keyhere,
  author = {Xu, Yanfei and Zhang, Liang and Liu, Wei},
  title  = {Cubic Analysis of Social Bookmarking for Personalized Recommendation},
  journal = {Frontiers of WWW Research and Development - APWeb 2006},
  year   = {2006},
  number = {},
  url    = {http://dx.doi.org/10.1007/11610113_66},

  const  = {\ text}
}