1. ACI Task Committee 318 (2008). Building code requirements for structural concrete (ACI 318-08) and commentary. American Concrete Institute. Farmington Hills.
2. BS8110-1 (1997). Structural use of concrete, part 1: Code of practice for design and construction. British Standards Institute. London.
3. DIN 1045-1 (2008). Tragwerke aus Beton, Stahlbeton und Spannbeton Teil 1: Bemessung und Konstruktion. Berlin.
4. Eurocode 2 (2004). Design of concrete structures - Part 1-1: General rules and rules for buildings.