1. Dimensional Analysis for Engineers;Taylor,1974
2. Axiomatic Design: Advances and Applications;Suh,2001
3. Complexity: Theory and Application;Suh,2004
4. Active damping in road vehicle suspension systems;Karnopp;Vehicle System Dynamics,1983
5. Crosby, M.J., Karnopp, D.C., 1973, The active damper- a new concept for shock and vibration control.