Oscar H. Ibarra, Jianwen Su. Generalizing the Discrete Timed Automaton. In Sheng Yu, Andrei Paun, editors, Implementation and Application of Automata, 5th International Conference, CIAA 2000, London, Ontario, Canada, July 24-25, 2000, Revised Papers. Volume 2088 of Lecture Notes in Computer Science, pages 157-169, Springer, 2000. [doi]
Abstract is missing.