1. Abou El-Azm Aly, A., M. Pascal, and R. Taher. 2015. “Experimental Study of Leakage Compensation for Actuator Speed Control in Electro-Hydraulic Systems.” International Journal of Engineering Research & Technology (IJERT), 4(12), December-2015.
2. Boosted PWM open loop control of hydraulic proportional valves
3. Dobchuk, W. 2004. ”Control of A Hydraulically Actuated Mechanism Using A Proportional Valve And A Linearizing Feed forward Controller”, PhD Thesis, Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada.