Full-state perturbation analysis of discrete event dynamic systems. - Zi-Qin Wang; Wen-Zhong Song; Chun-Bo Feng (Discret. Event Dyn. Syst., 1992)

Further properties of optimal hedging points in a class of manufacturing systems. - Xin-Zhen Yu; Wen-Zhong Song (IEEE Trans. Autom. Control., 1999)