S. Khamsawang and  S. Jiriwibhakorn,  Solving the Economic Dispatch Problem by Using Differential Evolution.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2009, vol. 28(4). 700 - 704
    [viewed 18 February 2020]. Available from: https://publications.waset.org/pdf/10313.