On forbidden state problems in a general class of non-ordinary controlled Petri nets. - Young Cheol Cho; Wook Hyun Kwon (SMC, 1998)

Elevator Group Control with Accurate Estimation of Hall Call Waiting Times. - Young Cheol Cho; Zavarin Gagov; Wook Hyun Kwon (ICRA, 1999)

Timed Petri net based approach for elevator group controls. - Young Cheol Cho; Zavarin Gagov; Wook Hyun Kwon (IROS, 1999)

Inhibitor arc based state avoidance controller for non-convex forbidden state problems in Petri nets. - Young Cheol Cho; Wook Hyun Kwon (CDC, 2000)

Optimal control for steel annealing processes as hybrid systems. - Young Cheol Cho; Wook Hyun Kwon; Christos G. Cassandras (CDC, 2000)

An Unified State Avoidance Policy to Solve Forbidden State Problems in Generalized Controlled Petri Nets. - Young Cheol Cho; Wook Hyun Kwon (ICRA, 2001)

Improved Concept for Derivation of Velocity Profiles for Elevator Systems. - Zavarin Gagov; Young Cheol Cho; Wook Hyun Kwon (ICRA, 2001)