A macro-level scheduling method using Lagrangian relaxation. - Yuanhui Zhang; Peter B. Luh; Katsumi Narimatsu; Tetsuro Moriya; Tsuyoshi Shimada; Lei Fang (IEEE Trans. Robotics Autom., 2001)

Supply chain performance evaluation: a simulation study. - Yan Tu; Peter B. Luh; Weidong Feng; Katsumi Narimatsu (ICRA, 2003)