A. Udomsakdigool and  S. Bangsaranthip,  Combining Ant Colony Optimization and Dynamic Programming for Solving a Dynamic Facility Layout Problem.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2010, vol. 40(4). 379 - 383
    [viewed 18 January 2021]. Available from: https://publications.waset.org/pdf/7157.