@mastersthesis{stumme94boolesche,
  author = {Stumme, Gerd},
  comment = {alpha},
  interhash = {85d61c34f437517d77f7b49ce1df1349},
  intrahash = {545afd2fc553435b9bef5c610a387e69},
  school = {TH Darmstadt},
  title = {Boolesche {B}egriffe},
  type = {Diplomarbeit},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/1994/Diplomarbeit94.pdf},
  year = 1994
}