Relations and Kleene Algebra in Computer Science : 10th International Conference on Relational Methods in Computer Science, and 5th International Conference on Applications of Kleene Algebra, RelMiCS/AKA 2008, Frauenwörth, Germany, April 7-11, 2008, Proceedings - Rudolf Berghammer, Bernhard Möller, Georg Struth ((Lecture Notes in Computer Science))