1. Elastic Earthquake Response of Building Frames
2. Effect of Initial Base Motion on Response Spectra
3. Porush A. R. (1989). “The new 1988 SEAOC blue book and 1988 UBC overview of the lateral force section.” Seismic Engrg.: Res. and Pract. Proc. of the Sessions Related to Seismic Engrg. at Struct. Congr. '89 ASCE New York N.Y. 702–711.
4. Recommended lateral force requirements and commentary . (1990). Structural Engineers Association of California Sacramento Calif.
5. Recommended provisions for the development of seismic regulations for new buildings (NEHRP) part 2: commentary . (1991). Building Seismic Safety Council Washington D.C.