1. The vertical-to-horizontal response spectral ratio and tentative procedures for developing simplified V/H and vertical design spectra;Bozorgnia;J Earthquake Eng,2004
2. Vertical earthquake ground motion records: an overview;Elgamal;J Earthquake Eng,2004
3. Broderick BM, Elnashai AS, Ambraseys NN, Barr JM, Goodfellow RG, Higazy EM. The Northridge (California) earthquake of 17 January 1994: observations. Strong motion and correlative response analysis. Research report no. ESEE 94/4. London: Engineering Seismology and Earthquake Engineering, Imperial College; 1994.
4. Goltz JD. The Northridge, California earthquake of January 17, 1994: general reconnaissance report. Report no. NCEER-94-0005. Buffalo: National Centre for Earthquake Engineering Research; 1994.
5. Elnashai AS, Bommer JJ, Baron I, Salama AI, Lee D. Selected engineering seismology and structural engineering studies of the Hyogo–ken Nanbu (Kobe, Japan) earthquake of 17 January 1995. Report no. ESEE/95-2. London: Engineering Seismology and Earthquake Engineering, Imperial College; 1995.