1. Bobjer, O. (1989). Ergonomic knives. In A. Mital (Ed.), Advances in industrial ergonomics and safety I (pp. 291–298). London, UK: Taylor & Francis.
2. Fraser, T.M. (1980). Ergonomic principles in the design of hand tools [Occupational Safety and Health Series, 9]. Geneva, Switzerland: International Labour Office.
3. Gjessing, C.C., Schoenborn, T.F. & Cohen, A. (Eds.). (1994). Participatory ergonomics interventions in meatpacking plants. Cincinnati, OH, USA: National Institute of Occupa-tional Safety and Health, U.S. Department of Health and Human Services.
4. Laprie, J.C. (1996). Guide de la sûreté de fonctionnement [Dependability guide]. Toulouse,France: CEPADUES éditions.
5. Radwin, R.G. & Haney, J.T. (Eds.). (1995). An ergonomics guide to hand tools. Fairfax, VA, USA: American Industrial Hygiene Association.