1. Alur, R., Dill, D.L.: A Theory of Timed Automata. Theor. Comput. Sci. 126(2), 183–235 (1994)
2. Lecture Notes in Computer Science;T. Amnell,2001
3. Amnell, T., Fersman, E., Pettersson, P., Sun, H., Wang, Y.: Code Synthesis for Timed Automata. Nord. J. Comput. 9(4), 269–300 (2002)
4. Lecture Notes in Computer Science;J. Bengtsson,1996
5. Brooke, P.: A Timed Semantics for a Hierarchical Desgn Notation. PhD thesis, University of York (1999)