1. Department of Trade and Industry’, 2000. Strength data for design safety phase 1. Nottingham, England: Product Safety and Testing Group, Institute for Occupational Ergonomics and Division of Manufacturing.
2. Department of Trade and Industry, 2002. Strength data for design safety phase 2. Nottingham, England: Product Safety and Testing Group, Institute for Occupational Ergonomics and Division of Manufacturing.
3. Norms for grip strength in children aged 4–16 years;Häger-Ross;Acta Paediatr.,2002
4. New requirements to the emergency exits of buses;Matolcsy;Sci. Soc. Mech. Eng.,2010
5. NHTSA, 2011. CFR. Part 571, Federal Motor Vehicle Safety Standards (FMVSS), SubSection 571.217, FMVSS No. 217, Bus Emergency Exits and Window Retention and Release. US DOT. Office of the Federal Register, National Archives and Records Administration, Washington, DC. As of October, 1.