1. An investigation of reinforced concrete columns;Richart,1934
2. High strength bars as concrete reinforcement. Part 1 – Introduction to a series of experimental reports;Hognestad;J PCA Res Develop Lab,1961
3. High strength bars as concrete reinforcement. Part 5 – Lapped splices in concentrically loaded columns;Pfister;J PCA Res Develop Lab,1963
4. Behavior of concrete columns reinforced with high strength steels;Todeschini;ACI J Proc,1964
5. Building code requirements for reinforced concrete (ACI 318-63);ACI Committee 318,1963