WASET
    Sara Mensou and  Ahmed Essadki and  Issam Minka and  Tamou Nasser and  Badr Bououlid Idrissi,  Backstepping Controller for a Variable Wind Speed Energy Conversion System Based on a DFIG .   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2018, vol. 141(9). 598 - 604
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10009495.