Tamrazyan, Ashot George, and Matseevich Tatiana Anatolу. “Stiffness of Post-Tensioned Girderless Floor With Different Column Grids”. Journal of Architectural and Engineering Research 1, no. 2 (December 26, 2021): 56–61. Accessed July 2, 2022. https://jaer.nuaca.am/index.php/jaer/article/view/44.