1. British Standards Institution BS EN 13490. (2002). Mechanical vibration—Industrial trucks—Laboratory evaluation and specification of operator seat vibration, London.
2. International Organization for Standardization. (2003). Agricultural wheeled tractors—Operator’s seat—Laboratory measurement of transmitted vibration, ISO 5007, Genewa.
3. International Organization for Standardization. (2000). Earth-moving machinery–Laboratory evaluation of operator seat vibration, ISO 7096, Genewa.
4. Bluthner, R., Seidel, H., & Hinz, B. (2008). Laboratory study as basis of the development for a seat testing procedure in horizontal directions. International Journal of Industrial Ergonomics, 38, 447–456.
5. Close, C. M., Frederick, D. K., & Newell, J. C. (2001). Modeling and analysis of dynamic systems (3rd ed.). New York: Wiley.