1. European Standard EN 1317-1:2010. Road Restraint Systems - Part 1 (2010)
2. European Standard EN 1317-2:2010. Road Restraint Systems - Part 2 (2010)
3. British Standard PD CEN/TR 16303-1:2012. Road Restraint Systems - Part 1 (2012)
4. British Standard PD CEN/TR 16303-1:2012. Road Restraint Systems - Part 4 (2012)
5. Halquist J.O., LS-DYNA Theory Manual, USA (2006)