M. Ahmadnezhad and  M. Soltanpour,  Tracking Performance Evaluation of Robust Back-Stepping Control Design for a Nonlinear Electrohydraulic Servo System.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2015, vol. 103(7). 1341 - 1347
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10002309.