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Greedy heuristics for single-machine scheduling problems with general earliness and tardiness costs
Federgruen, A., (1994)
Heuristics for Multimachine Minmax Scheduling Problems with General Earliness and Tardiness Costs
Federgruen, A., (1997)
Erratum to "Heuristics for Multimachine Scheduling Problems with Earliness and Tardiness Costs"