1. ACI. Building Code Requirements for Structural Concrete and Commentary, section 10.7 and R10.7.2011. 317–8 p.
2. CAN/CSA-S6-06. Canadian highway bridge design code and S6.1–06 commentary on CAN/CSA-S6-06, Canadian Highway Bridge Design Code: Association canadienne de normalisation; 2006.
3. CSA-A23.3–04. Technical Committee on Reinforced Concrete Design. A23.3–04 Design of Concrete Structures: Canadian Standards Association; 2005.