Maneetham, Dechrit, and Nitin Afzulpurkar. “Modeling, Simulation and Control of High Speed Nonlinear Hydraulic Servo System”.
Journal of Automation, Mobile Robotics and Intelligent Systems, vol. 4, no. 1, Jan. 2010, pp. 94-103,
https://www.jamris.org/index.php/JAMRIS/article/view/108.