1. Uniform Building Code;ICBO,1994
2. Recommended Lateral Force Requirements and Commentary;SEAOC,1990
3. Cyclic yield reversal in steel building connections;Popov;J. Struct. Div., ASCE,1969
4. Cyclic loading of steel beams and connections;Popov;J. Struct. Div., ASCE,1973
5. Cyclic behavior of large beam-column assemblies;Popov;Earthq. Spectra,1985