M. Umabharathi and  S. Vijayabaskar,  Speed Control of Permanent Magnet Synchronous Motor Using Evolutionary Fuzzy PID Controller.   journal   = {International Journal of Electrical and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 108(12). 1485 - 1491
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10003900.