WASET
    Ming-Hui Lee and  Shou-Jen Hsu,  Retaining Structural System Active Vibration Control.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2012, vol. 65(5). 356 - 360
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10262.