S. F. Abdulqadir, Z. J. Ahmed, W. M. Khalaf, D. F. Alrawi, and H. K. Dawood, “Enhancement of Crashworthiness Parameters Using a Bitubular Tube with Various Tube Lengths”, J. Eng. Technol. Sci., vol. 57, no. 2, pp. 257–272, Feb. 2025.