WASET
    Hossein Kabir and  Mojtaba Sadeghi,  An Optimized Method for Calculating the Linear and Nonlinear Response of SDOF System Subjected to an Arbitrary Base Excitation.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2017, vol. 123(3). 380 - 385
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/10006977.