Klosterhalfen, Steffen; Kiesmüller, Gudrun; Minner, Stefan - In: International Journal of Production Economics 133 (2011) 1, pp. 302-311
We analyze a single-product, periodic-review, stochastic demand inventory model with backorders and two supply options, a regular and a more expensive expedited one, with deterministic, offsetting lead times. Since the optimal policy for such a problem is generally unknown, several simpler...