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2. . Use of energy as a design criterion in earthquake-resistant design. Report UCB/EERC-88/18, Earthquake Research Centre University of California, Berkeley, U.S.A., 1988.
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4. International Council of Building Code Officials. Uniform Building Code (UBC), Whittier, CA, 1997.
5. Federal Emergency Management Agency. NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures, 2000 Edition: Part 1—Provisions (FEMA 368), Part 2—Commentary (FEMA 369), Washington, DC, 2001.