Mubarak Alhajri,  Relaxing Convergence Constraints in Local Priority Hysteresis Switching Logic.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 123(3). 572 - 576
    [viewed 17 October 2019]. Available from: https://publications.waset.org/pdf/10006616.