WASET
    H. Zabiri and  N. Mazuki,  A Black-Box Approach in Modeling Valve Stiction.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 605 - 612
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/4226.