Bassam Istanbouli,  The Effect on Lead Times When Normalizing a Supply Chain Process.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2020, vol. 167(11). 1094 - 1098
    [viewed 14 May 2021]. Available from: https://publications.waset.org/pdf/10011578.