Mohammad Jafarifar,  Second Order Sliding Mode Observer Using MRAS Theory for Sensorless Control of Multiphase Induction Machine.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 98(2). 237 - 241
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10002560.