1. Calise A. J. and Sweriduk G. D. (1994). “Active damping of building structures using robust control.” Proc. U.S. 5th Nat. Conf. Earthquake Engrg. Earthquake Engrg. Research Inst. El Cerrito Calif. 1023–1032.
2. Dowdell D. J. and Cherry S. (1994a). “Structural control using semi-active friction dampers.” Proc. 1st World Conf. on Struct. Control Int. Assoc. for Structural Control Los Angeles Calif. FA1/59– FA1/68.
3. Dowdell D. J. and Cherry S. (1994b). “Semi-active friction dampers for seismic response control of structures.” Proc. U.S. 5th Nat. Conf. Earthquake Engrg. Earthquake Engrg. Research Inst. El Cerrito Calif. 819–828.
4. Feng Q. and Shinozuka M. (1990). “Use of a variable damper for hybrid control of bridge response under earthquake.” Proc. U.S. Nat. Workshop on Struct. Control Univ. of Southern California Los Angeles Calif. 107–112.
5. Control of Seismic Response of Bridge Structures Using Variable Dampers