Kyrpa, I. I., & Pshinko, P. O. (2009). THE STUDY OF STRESS-STRAIN STATE OF CONCRETE BENDING ELEMENT REINFORCED WITH CONVENTIONAL REINFORCEMENT, WITH AMENDMENTS NO. 1 TO SNIP 2.03.01-84*. Science and Transport Progress, (28), 90–95. https://doi.org/10.15802/stp2009/13584