Kaczmarczyk, Waldemar. “Modelling Set-up Times Overlapping Two Periods in the Proportional Lot-Sizing Problem With Identical Parallel Machines”. Decision Making in Manufacturing and Services 7, no. 1 (May 20, 2014): 43–50. Accessed May 5, 2024. https://journals.agh.edu.pl/dmms/article/view/869.