Tamburrano, Paolo, Andrew R. Plummer, Elia Distaso, and Riccardo Amirante. “A Review of Electro-Hydraulic Servovalve Research and Development”. International Journal of Fluid Power 20, no. 1 (April 18, 2019): 53–98. Accessed July 16, 2024. https://journals.riverpublishers.com/index.php/IJFP/article/view/755.