M.B. Aryanezhad and  J. Aliabadi,  Considering Assembly Operations and Product Structure for Manufacturing Cell Formation.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2010, vol. 38(2). 174 - 178
    [viewed 22 January 2020]. Available from: https://publications.waset.org/pdf/6032.