%0 Journal Article %T Minimizing Makespan in a Two-Machine Flow Shop with Delays and Unit-Time Operations is NP-Hard %A Yu, Wenci %A Hoogeveen, Han %A Lenstra, Jan %J Journal of Scheduling %V 7 %N 5 %P 333-348 %@ 1094-6136 %D 2004-10-05 %I Kluwer Academic Publishers %~ DeepDyve