Preemptive Hybrid Flowshop Scheduling problem of interval orders

@article{Djellab2002PreemptiveHF,
  title={Preemptive Hybrid Flowshop Scheduling problem of interval orders},
  author={Housni Djellab and Khaled Djellab},
  journal={European Journal of Operational Research},
  year={2002},
  volume={137},
  pages={37-49}
}