Chen, Y.-L.Y.-L.Chen傅立成Sun, T.-H.T.-H.SunFu, L.-CL.-CFu2009-04-272018-07-062009-04-272018-07-061994http://ntur.lib.ntu.edu.tw//handle/246246/154182en-USA Petri-Net Based Hierarchical Structure for Dynamic Scheduler of an FMS : Rescheduling and Deadlock Avoidanceconference paper