1. Carneiro, J.F., de Almeida, F.G., 2006. Reduced-order thermodynamic models for servo-pneumatic actuator chambers. Proc. Inst. Mech. Eng. Part I: J. Syst. Contr. Eng., 220(4): 301–314. [doi:10.1243/09596518JSCE203]
2. Chen, C., Liu, L., Cheng, C., et al., 2008. Fuzzy controller design for synchronous motion in a dual-cylinder electrohydraulic system. Contr. Eng. Pract., 16(6):658–673. [doi:10.1016/j.conengprac.2007.08.005]
3. Chen, C.Y., 2007. Synchronous motion of two-cylinder electrohydraulic system with unbalanced loading and uncertainties. Proc. Inst. Mech. Eng. Part I: J. Syst. Contr. Eng., 221(7):937–955. [doi:10.1243/09596518JSCE372]
4. Hsieh, M., Tung, C., Yao, W., et al., 2007. Servo design of a vertical axis drive using dual linear motors for high speed electric discharge machining. Int. J. Mach. Tools Manuf., 47(3–4):546–554. [doi:10.1016/j.ijmachtools.2006.05.011]
5. Jang, J.S., Kim, Y.B., Lee, I.Y., et al., 2004. Design of a synchronous position controller with a pneumatic cylinder driving system. SICE Annual Conf., p.2943–2947.