Saif UllahZailin GuanChuangjian WangCong HeLei YueMirza JahanzaibDrum buffer rope-based heuristic for multi-level rolling horizon planning in mixed model production.3864-3891201957Int. J. Prod. Res.12https://doi.org/10.1080/00207543.2019.1569272db/journals/ijpr/ijpr57.html#UllahGWHYJ19