1. Anderson J. C. and Bertero V. V. (1969). “Seismic behavior of multi-story frames designed by different philosophies.” EERC Rep. No. 69-11 Earthquake Engrg. Res. Ctr. University of California at Berkeley Calif. 35.
2. Ashour A. Hanson R. D. and Scholl R. E. (1986). “Effect of supplemental damping on earthquake response.” Proc. ATC Seminar on Base Isolation and Passive Energy Dissipation Applied Technology Council Redwood City Calif. 271–280.
3. Chang K. C. Soong T. T. Oh S.T. and Lai M. L. (1992). “Seismic response of steel-frame structures with added viscoelastic dampers.” Proc. 10th World Conf. on Earthquake Engrg. A. A. Balkema Rotterdam The Netherlands Vol. 9 5169–5173.
4. Clough R. W. and Penzien J. (1993). Dynamics of structures. McGraw-Hill Inc. New York N.Y. 56–58 577.
5. Constantinou M. C. and Symans M. D. (1992). “Experimental and analysis investigation of seismic response of structures with supplemental fluid viscous dampers.” NCEER Rep. No. 92-0032 Nat. Ctr. for Earthquake Engrg. Res. State University of New York at Buffalo N.Y. 1–20.