A multiprocessor task scheduling model for berth allocation: heuristic and worst-case analysis. - Yongpei Guan; Wen-Qiang Xiao; Raymond K. Cheung; Chung-Lun Li (Oper. Res. Lett., 2002)

Dynamic Lot Sizing with Batch Ordering and Truckload Discounts. - Chung-Lun Li; Vernon Ning Hsu; Wen-Qiang Xiao (Oper. Res., 2004)