WASET
    Minsun Kim and  Ki-Sun Choi and  Hyun-Jee Lee and  Young-Chan You,  A Study on Performance-Based Design Analysis for Vertical Extension of Apartment Units.   journal   = {International Journal of Structural and Construction Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2017, vol. 132(12). 1648 - 1653
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10008372.