Ahmad Rabanimotlagh,  An Efficient Ant Colony Optimization Algorithm for Multiobjective Flow Shop Scheduling Problem.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 598 - 604
    [viewed 12 August 2020]. Available from: https://publications.waset.org/pdf/11363.