B. Singh and  K. K. Agrawal and  B. K. Nanda,  Vibration Attenuation in Layered and Welded Beams with Unequal Thickness.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 587 - 596
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/8954.