Young Hoon Lee and  Bong Jin Kang and  Won Ho Kang,  An Empirical Formula for Seismic Test of Telecommunication Equipments.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1542 - 1544
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/9339.