Won Mok. Choi and  Tae Su. Kwon and  Hyun Sung. Jung and  Jin Sung. Kim,  Study on Rupture of Tube Type Crash Energy Absorber using Finite Element Method.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2011, vol. 52(4). 821 - 826
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/14635.