9Dekker R, Fleischmann M, lnderfurth K et al. Reverse logisties: Quantitative models for closed loop supply chains [M]. Heidelberg, Germany: Springer, 2004.
10Dada M, Petruzzi N C, Schwarz L B. A newsvendor model with unreliable suppliers [J]. Manufacturing & Service Operations Management, 2007, 9(1) : 9 - 32.