1. Azizov T (2010) The use of approximation finite elements in the calculations of structures. News Odessa State Power Acad Archit 39(1):4–9
2. Azizov TN (2009) Stiffness of reinforced concrete elements in torsion and its influence on the spatial work of bridges NAS of Ukraine. Physico-mech. Institute of Im .. Karpenka, VG, pp 576–590
3. Cowan GJ (1972) Torsion in ordinary and prestressed concrete: Trans. from English Publishing house of literature on construction, p 104
4. Harutyunyan NKh (1963) Torsion of elastic bodies. Publishing house of physical and mathematical literature, p 686
5. Jurkowska N (2018) Considering nonlinear properties of concrete in the design of reinforced concrete structures for torsion. Paper presented at the IOP conference series: materials science and engineering, vol 364, no (1).
https://doi.org/10.1088/1757-899x/364/1/012030