WASET
    P. Acharjee and  S. K. Goswami,  Multiple Power Flow Solutions Using Particle Swarm Optimization with Embedded Local Search Technique.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 921 - 928
    [viewed 05 May 2024]. Available from: https://publications.waset.org/pdf/546.