1. Koltai T. Termelésmenedzsment [Production Management]. Budapest: Typotex Publisher; 2009.
2. Harris FW. How many parts to make at once. Factory, The Magazine of Management 1913; 10(3):135-136, 152.
3. A model for an exponentially decaying inventory;Ghare;J Ind Engineering,1963
4. Lot size optimization with quantity and freight rate discounts;Tersine;Logist Transport Rev,1991
5. Dynamic version of the economic lot size model;Wagner;Manage Sci,1958