Matthias Schmidt and  Steffen C. Eickemeyer and  Prof. Peter Nyhuis,  Efficient Supplies to Assembly Areas from Storage Stages.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2009, vol. 35(11). 1415 - 1419
    [viewed 07 July 2020]. Available from: https://publications.waset.org/pdf/3898.