1. 2) Griffin MJ (1990) Handbook of human vibration. Academic Press, London.
2. 3) Pelmear PL, Wasserman DE (1998) Hand-arm Vibration: A Comprehensive Guide for Occupational Health Professionals, 2nd ed. OEM Press, Beverly Farms, MA, USA.
3. 4) EU Directive. 2002/44/EC of 25 June 2002 on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration) (Sixteenth individual directive within the meaning of article 16 (1) of directive 89/391/EEC). The European Parliament and the Council of the European Union (EU), Luxembourg.
4. A study of hand vibration on chipping and grinding operators, part III: Power levels into the hands of operators of pneumatic tools used in chipping and grinding operations