1. Plummer, A.: Electrohydraulic servovalves – past, present, and future. In: 10th International Fluid Power Conference (2016)
2. Cundiff, S.J.: Fluid Power Circuits and Control Fundamental and Applications. CRC Press, Boca Raton (2000)
3. Merritt, H.E.: Hydraulic Control Systems. Wiley, New York (1967)
4. Murrenhoff, H.: Trends in valve development. Ölhydraulik und Pneumatik 46(4), 1–36 (2003)
5. Rybarczyk, D., Milecki, A., Stefanski, F.: Patent P.421994, Poznan University of Technology, Poznań (2017)