1. 1) Japanese Road Association: Specifications for Highway Bridges (JSHB), Feb. 1980.
2. 2) Din 18800 Teil II: Stabilitätsfalle, Knicken von Staben und Stabwerken, April 1981.
3. 3) European Convention for Constructional Steelwork: European Recommendations for Steel Construction, March 1979.
4. 4) European Convention for Constructional Steelwork: Eurocode 3, Common Unified Code of Practice for Steel Structures, Draft, July 1983.
5. 5) Kato, B., Akiyama, H. and Kitazawa, S.: Deformation Characteristics of Box-Shaped Steel Members Influenced by Local Buckling, Proc. of AIJ, No. 268, pp. 71-76, June 1978.