7Rosenblatt M J. Multi-item inventory system with budgetary constraint: A comparison between the lagrangian and the fixed cycle approach[ J]. International Journal of Production Research. 1981, 19(4) : 331 -339.
8Li L, Shubik M, Sobel M J. Control of dividends, capital subscriptions and physical inventories[ R]. Working paper. Yale School of Management, 2005. available at: < http ://ssm. corn/abstract = 690564 >.
9Hu Q H, Sobel M J. Echelon base-stock policies are financially sub-optimal[ J]. Operations Research Letters, 2007, 35: 561 - 566.
10Protopappa-Sieke M, Seifert R W. Interrelating operational and financial performance measurements [ J ]. European Journal of Operational Research, 2010, 204 : 439 - 448.