WASET
    Joko Pitono and  Adi Soeprijanto and  Takashi Hiyama,  Hybrid Optimization of Emission and Economic Dispatch by the Sigmoid Decreasing Inertia Weight Particle Swarm Optimization.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2009, vol. 36(12). 2302 - 2307
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9139.