Sipos, Kristóf, and János Tóth. “Measurement of Friction Losses of Electro-Pneumatical Valves With Industrial Devices”. International Journal of Engineering and Management Sciences 2, no. 1 (March 20, 2017): 68–72. Accessed November 22, 2024. https://ojs.lib.unideb.hu/IJEMS/article/view/7104.