1. Ahrendt, W., Baar, T., Beckert, B., Bubel, R., Giese, M., Hähnle, R., Menzel, W., Mostowski, W., Roth, A., Schlager, S., Schmitt, P.H.: The KeY tool. Software and Systems Modeling (April 2004), Online First issue, to appear in print
2. Lecture Notes in Computer Science;B. Beckert,2001
3. Beckert, B., Giese, M., Habermalz, E., Hähnle, R., Roth, A., Rümmer, P., Schlager, S.: Taclets: a new paradigm for constructing interactive theorem provers. In: Revista de la Real Academia de Ciencias Exactas, Fýsicas y Naturales, Serie A: Matemáticas. Special Issue on Symbolic Computation in Logic and Artificial Intelligence, vol. 98(1) (2004)
4. Lecture Notes in Computer Science;B. Beckert,2003
5. Lecture Notes in Artificial Intelligence;B. Beckert,2001