WASET
    A. K. Al-Othman and  Nabil A. Ahmed and  A. M. Al-Kandari and  H. K. Ebraheem,  Selective Harmonic Elimination of PWM AC/AC Voltage Controller Using Hybrid RGA-PS Approach .   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2007, vol. 5(5). 746 - 752
    [viewed 17 April 2024]. Available from: https://publications.waset.org/pdf/2381.