Li, Perry Y., and Kailash Krishnaswamy. “PASSIVE BILATERAL TELEOPERATION OF A HYDRAULIC ACTUATOR USING AN ELECTROHYDRAULIC PASSIVE VALVE”. International Journal of Fluid Power 5, no. 2 (July 1, 2004): 43–56. Accessed August 15, 2024. https://journals.riverpublishers.com/index.php/IJFP/article/view/586.