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Minimizing makespan subject to minimum total flow-time on identical parallel machines
Gupta, J.N.D., (2000)
Minimizing maximum tardiness and number of tardy jobs on parallel machines subject to minimum flow-time
Gupta, J.N.D., (2003)
Original Papers - Group Scheduling in Parallel Manufacturing Cells With Resource and Family Assignment Flexibility
Ruiz-Torres, A.J., (2002)