@Article{stumme03off,
  author = {Stumme, G.},
  title  = {Off to New Shores -- Conceptual Knowledge Discovery and Processing},
  journal = {Intl. J. Human-Comuter Studies (IJHCS)},
  year   = {2003},
  number = {3},
  url    = {http://www.kde.cs.uni-kassel.de/stumme/papers/2003/stumme2003off.pdf},

  const  = {\ text}
}
@Proceedings{stumme00begriffliche,

  title  = {Begriffliche Wissensverarbeitung -- Methoden und Anwendungen},

  year   = {2000},
  number = {},
  url    = {http://www.springer.com/dal/home/generic/search/results?SGWID=1-40109-22-2058937-0},

  const  = {\ text}
}
@Article{wille00begriffliche,
  author = {Wille, Rudolf},
  title  = {Begriffliche Wissensverarbeitung: Theorie und Praxis},
  journal = {Informatik--Spektrum},
  year   = {2000},
  number = {6},
  url    = {http://dblp.uni-trier.de/db/journals/insk/insk23.html#Wille00},

  const  = {\ text}
}
@Article{wille00begriffliche,
  author = {Wille, Rudolf},
  title  = {Begriffliche Wissensverarbeitung: Theorie und Praxis},
  journal = {Informatik Spektrum},
  year   = {2000},
  number = {6},
  url    = {http://dblp.uni-trier.de/db/journals/insk/insk23.html#Wille00},

  const  = {\ text}
}
@Article{stummei96international,
  author = {Stumme, G.},
  title  = {International Conference  on  Conceptual Knowledge Processing. Conference Report.},
  journal = {Zeitschrift für Semiotik},
  year   = {1996},
  number = {Heft 2-3},
  url    = {},

  const  = {\ text}
}
@Book{wille94begriffliche,

  title  = {Begriffliche Wissensverarbeitung -- Grundfragen und Aufgaben},

  year   = {1994},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{wille94plaedoyer,
  author = {Wille, Rudolf},
  title  = {Pl�doyer f�r eine philosophische Grundlegung der Begrifflichen Wissensverarbeitung},
  journal = {B. I. -Wissenschaftsverlag},
  year   = {1994},
  number = {},
  url    = {},

  const  = {\ text}
}