Bozorgirad, Mir Abbas; Logendran, Rasaratnam - In: International Journal of Production Economics 145 (2013) 2, pp. 599-612
We consider a group scheduling problem in a hybrid flowshop where the parallel machines in one or more stages of the flowshop are unrelated and have different run times for the same job. The objective of the problem is to simultaneously decrease the producer's cost by minimizing the...