\input zb-basic \input zb-ioport \iteman{io-port 70978710} \itemau{Zhou, Changcheng; Meng, Jie} \itemti{Modeling and simulation of double-tube hydraulic damper external characteristic} \itemso{IITSI, 713-719 (2010).} \itemcc{} \itemut{} \itemli{http://doi.ieeecomputersociety.org/10.1109/IITSI.2010.128} \end