1. CEB-FIP MODEL CODE 1990. Comité Euro-International du Béton, Suisse; 1990.
2. NP EN 1992-1-1. Eurocode 2: design of concrete structures – part 1: general rules and rules for buildings; March 2010.
3. ACI Committee 318. Building code requirements for reinforced concrete (ACI 318-05) and commentary (ACI 318R-05). American Concrete Institute, Detroit, MI; 2005.
4. Rausch E. Berechnung des Eisenbetons gegen Verdrehung (design of reinforced concrete in torsion). Ph.D. thesis, Berlin; 1929. 53 pp. [in German].
5. Experiments with concrete in torsion;Andersen;Trans ASCE,1935