1. International Organization for Standardization ISO 2631-1, Mechanical vibration and shock—evaluation of human exposure to whole-body vibration—part 1: general requirements, second ed., 1997.
2. On the relationship between whole-body vibration exposure and spinal health risk;Seidel;Industrial Health,2005
3. H. Seidel, R. Blüthner, B. Hinz, M. Schust, Stresses in the lumbar spine due to whole-body vibration containing shocks (Final report), Wirtschaftsverlag NW (Schriftenreihe der Bundesanstalt für Arbeitsschutz und Arbeitsmedizin: Forschung FB 777), Bremerhaven, 1997.
4. International Organization for Standardization ISO 10326, Mechanical vibration—laboratory method for evaluating vehicle seat vibration—part 1: basic requirements, 1992.
5. International Organization for Standardization ISO 7096, Earth moving machinery, laboratory evaluation of operator seat vibration, 2000.