Kefeng Xu, Philip T. Evers Managing single echelon inventories through demand aggregation and the feasibility of a correlation matrix. [Citation Graph (0, 0)][DBLP] Computers & OR, 2003, v:30, n:2, pp:297-308 [Journal]
Kefeng Xu, Philip T. Evers, Michael C. Fu Estimating customer service in a two-location continuous review inventory model with emergency transshipments. [Citation Graph (0, 0)][DBLP] European Journal of Operational Research, 2003, v:145, n:3, pp:569-584 [Journal]