Zheng, Yan, Yujie Xiao, and Yoonho Seo. 2016. “A HYBRID HEURISTIC ALGORITHM FOR INTEGRATED PROBLEM OF MACHINE SCHEDULING AND UNIDIRECTIONAL FLOW PATH DESIGN”. International Journal of Industrial Engineering: Theory, Applications and Practice 22 (6). https://doi.org/10.23055/ijietap.2015.22.6.1566.