1. FEMA-267A. Federal Emergency Management Agency. Program to reduce the earthquake hazards of steel moment frames structures. Interim guidelines. FEMA Report Distribution Center, Jessup, MD, USA, 1997.
2. FEMA-288. Federal Emergency Management Agency. Program to reduce the earthquake hazards of steel moment frames structures. Background reports: metallurgy, fracture mechanics, welding, moment connections and frame systems behaviour. FEMA Report Distribution Center, Jessup, MD, USA, 1997.
3. AISC (American Institute for Steel Construction). Seismic provisions for structural steel buildings, 1997.
4. EUROCODE 8. Design provisions for the earthquake resistance of structures. CEN Comite Europeen de Normalisation, Brussels, Belgium, 1998.
5. Theory and design of seismic resistant steel frames;Mazzolani,1996