1. ASTM A970/A970M-12, Standard specification for headed steel bars for concrete reinforcement, (2012).
2. California Department of Transportation, Prequalified List of Headed Reinforcing Steel Fabricators, (2013).
3. Headed Reinforcement Corporation, T-headed bars. Catalogue. (Fountain Valley, CA, 2012).
4. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary, ed. Farmington Hills, Mich., American Concrete Institute, (2014), p. 667.
5. C. O. Orangun, J. O. Jirsa, and J. E. Breen, The Strength of Anchor Bars: A Reevaluation of Test Data on Development Length and Splices, Center for Highway Research, (Austin, Texas, 1975).