@Inproceedings{berendt2004roadmap,
  author = {Berendt, Bettina and Hotho, Andreas and Mladenic, Dunja and van Someren, Maarten and Spiliopoulou, Myra and Stumme, Gerd},
  title  = {A Roadmap for Web Mining: From Web to Semantic Web.},

  year   = {2004},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2004/berendt2004roadmap.pdf},

  const  = {\ text}
}
@Proceedings{berendt2004web,

  title  = {Web Mining: From Web to Semantic Web, First European Web
               Mining Forum, EMWF 2003, Cavtat-Dubrovnik, Croatia, September
               22, 2003, Revised Selected and Invited Papers},

  year   = {2004},
  number = {},
  url    = {http://springerlink.metapress.com/content/unvvag26dttf/},

  const  = {\ text}
}
@Proceedings{maedche02information,

  title  = {Information Integration and Mining in Databases and on the Web. Proceedings of the 2nd International Workshop on Databases, Documents, and Information Fusion (DBFusion 2002)},
  journal = {CEUR-WS},
  year   = {2004},
  number = {},
  url    = {http://ftp.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-124/},

  const  = {\ text}
}