Scheduling identical parallel machines and operators within a period based changing mode. - Mohammed Zouba; Pierre Baptiste; Djamal Rebaine (Comput. Oper. Res., 2009)

FPTAS for the two identical parallel machine problem with a single operator under the free changing mode. - Pierre Baptiste; Djamal Rebaine; Mohammed Zouba (Eur. J. Oper. Res., 2017)