Optimal Algorithms for the Economic Lot-Sizing Problem with Multi-supplier. - Qing-Guo Bai; Jian-Teng Xu (AAIM, 2010)

A note on an economic lot-sizing problem with perishable inventory and economies of scale costs: Approximation solutions and worst case analysis. - Qing-Guo Bai; Yuzhong Zhang; Guang-Long Dong (Int. J. Autom. Comput., 2010)