1. Karadogan F, Yuksel E. Possible collapse reasons of a steel space frame, Technical Report. Turkish: Istanbul Technical University; August 2003.
2. DIN 17200. Steels for quenching and tempering. Revision: 87. Chg; March 1987.
3. DIN 898. Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1: Bolts, screws and studs. ISO 898-1; 1999.
4. DIN 17100. Steels for general structural purposes; quality standart. Revision: 80. Chg; January 1980.
5. TS498, Design loads for buildings. Institute of Turkish Standard; November 1987.