1. 1) ISO 2631-1: 1997(E) Mechanical vibration and shock—Evaluation of human exposure to whole-body vibration—Part 1: General requirements.
2. 2) EU directive 2002/44/EC Minimum health and safety requirements regarding the exposure of workers to the risks from physical agents (vibration).
3. 3) Whole-body vibration guide to good practice v6.7g English. http://www.humanvibration.com/EU/VIBGUIDE.htm. Accessed June 7, 2006.
4. Evaluation and management of occupational low back disorders
5. 5) Sezgin OC (2002) Analysis of the combined effect of bad posture and vibration on helicopter pilots [PhD dissertation]. Middle East Technical University, Ankara.