“RESEARCHES OF TIGHTNESS DEGREES OF THE OPERATED BACK-PRESSURE VALVES OF THE PROPORTIONAL ELECTROHYDRAULIC VALVE” (2015) Visnyk of Vinnytsia Politechnical Institute, (3), pp. 109–113. Available at: https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/799 (Accessed: 11 October 2026).