Mehmet Savsar,  Modeling and Simulation of a Serial Production Line with Constant Work-In-Process.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2009, vol. 29(5). 638 - 646
    [viewed 24 January 2020]. Available from: https://publications.waset.org/pdf/13084.