1. ACI Committee 318 Building Code Requirements for Reinforced Concrete (ACI 318‐71) American Concrete Institute Detroit Mich 1971.
2. Building Research Institute Ministry of Construction Japan “A List of Experimental Results on Deformation Ability of Reinforced Concrete Columns under Large Deflection (No. 3)” (in Japanese) Kenchiku Kenkyu Shityo No. 21 Feb. 1978.
3. Hirosawa M. Ozaki M. and Wakabayashi M. “Experimental Study on Large Models of Reinforced Concrete Columns ” Session 2D: Dynamic Behavior of Structural Elements No. 139 Fifth World Conference on Earthquake Engineering Rome Italy 1973.
4. Jirsa J. O. Maruyama K. and Ramirez H. “Development of Loading System and Initial Tests—Short Columns under Bidirectional Loading ” CSERL Report No. 78‐2 The University of Texas at Austin Sept. 1978.
5. Maruyama K. “Behavior of Reinforced Short Columns under Bidirectional Lateral Loading ” thesis presented to the University of Texas at Austin Tex. in 1979 in partial fulfillment of the requirements for the degree of Doctor of Philosophy.