WASET
    Santosh Kr. Choudhary,  Fractional Order Feedback Control of a Ball and Beam System.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 91(7). 1235 - 1241
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9999009.