Hydraulic control system, 1981. ,
Hydraulic servo control system, 1993. ,
Unified modeling and analysis of a proportional valve, Journal of the Franklin Institute, vol.343, issue.1, pp.48-68, 2006. ,
DOI : 10.1016/j.jfranklin.2005.07.001
Research on the electrohydraulic variable valve actuation system based on a three-way proportional reducing Automovalve, International Journal of tive Technology, issue.l, pp.1027-1063, 2009. ,
Electro hydraulic Control Technique, 2003. ,
Electro-Hydraulic Servo Control System ,