Mircea Pastrav and  Horia Constantinescu,  Seismic Behavior of Self-Balancing Post-Tensioned Reinforced Concrete Spatial Structure.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2016, vol. 119(11). 1447 - 1451
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10005784.