1. Lecture Notes in Computer Science;D. Aspinall,2000
2. Baumeister, H., Bert, D.: Algebraic specification in Casl. In: Frappier, M., Habrias, H. (eds.) Software Specification Methods: An Overview Using a Case Study, Springer, Heidelberg (2000)
3. Bertot, Y., Castéran, P.: Interactive Theorem Proving and Program Development. Coq’Art: The Calculus of Inductive Constructions. Springer, Heidelberg (2004)
4. Lecture Notes in Computer Science,2004
5. The CCC homepage,
http://www.informatik.uni-bremen.de/cofi/ccc