WASET
    A. Shooshtari and  A. R. Masoodi and  S. Heyrani Moghaddam,  Free Vibration Analysis of Gabled Frame Considering Elastic Supports and Semi-Rigid Connections.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 701 - 705
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/9998497.