1、Differentiating customer service on the basis of delivery lead-times
作者: Wang YZ, Cohen MA, Zheng YS
来源出版物: IIE TRANSACTIONS    卷: 34    期: 11    页: 979-989    出版年: NOV 2002

2、An analytical comparison of long and short term contracts
作者: Cohen MA, Agrawal N
来源出版物: IIE TRANSACTIONS    卷: 31    期: 8    页: 783-796    出版年: AUG 1999