WASET
    Hossein Abbasi,  Optimal Voltage and Frequency Control of a Microgrid Using the Harmony Search Algorithm.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2016, vol. 110(2). 297 - 311
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10004030.