6Herrin R. How to calculate safety stocks for highly seasonal products[J]. The Journal of Business Forecasting, 2005 .
7Molinder. Joint optimization of lot-sizes, safety stocks and safety lead time in an MRP system[J]. International Journal of Production Research, 1997,35(4):983-994.
8Grubbstrom R W. A net present value approach to safety stocks in a multi-level MRP system[J].International Journal of Production Economics, 1999,59:361-375.
9Chopra S, et al. The effect of lead time uncertainty on safety stocks[J]. Decision Science, 2004, ;35 (1).
10Persona A, et al. Optimal safety stock levels of subassemblies and manufacturing components[J]. International Journal of Production Economics, 2007,110:147-159.
