• Habilitation in Information Systems, TU Vienna, 1996

      Thesis: Disjunctive Deductive Databases: Theoretical Foundations and Implementation
      Title: Univ.-Doz.

  • PhD in Computer Science, University of Karlsruhe, 1992

      Thesis: Nonmonotonic reasoning and semantics of logic programs
      Title: Dr. rer. nat.
      Grade: summa cum laude

  • Diploma in Mathematics, University of Heidelberg, 1986

      Thesis: Model-theory of (ultra-) metric vector spaces
      Title: Dipl.-Math.
      Grade: sehr gut

  • Abitur, Gutenberg-Gymnasium Wiesbaden, 1979

      Grade: 1.0