WASET
    E. Menga and  S. Hernandez,  Frequency Response of Complex Systems with Localized Nonlinearities.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2016, vol. 118(10). 1249 - 1257
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10005464.