1. 1) TANAKA T. Active Controlling System of Suspension. Journal of Japan Society of Automotive Engineering. (1988) vol.42, no.1, p.92-101.
2. 2) KAWARASAKI Y. Development of a Hydraulic Active Suspension by Nissan. Proceedings of Japan Society of Automotive Engineering Annual Congress, 1989. (1989) vol.892, p.193-196.
3. 3) YONEKAWA T. Effect of Active Controlled Suspension System on Vehicle Dynamics. Transaction of the Japan Society of Automotive Engineering. (1991) vol.22, no.3, p.63-68.
4. 4) HANAMURA Y. Control of Vehicle Maneuverability and Stability of Means of Attitude Control with Vertical Load Control. Transactions of the Japan Society of Mechanical Engineers, Series C. (1998) vol.64, no.624, p.242-247.
5. 5) HAMAHIRA M. Active Vehicle Suspension Control with Vertical Load Control by H_∞ Controller. Proceedings of the Dynamics and Design Conference 1999. (1999) p.41-46.