Önal, Mehmet; van den Heuvel, Wilco; Liu, Tieming - In: European Journal of Operational Research 223 (2012) 1, pp. 290-294
In a recent paper, Liu [3] considers the lot-sizing problem with lower and upper bounds on the inventory levels. He proposes an O(n2) algorithm for the general problem, and an O(n) algorithm for the special case with non-speculative motives. We show that neither of the algorithms provides an...