References

Bathe, K.J. and E.L. Wilson, 1972. Large eigenvalue problems in dynamic analysis. J. Eng. Mech. Division, 98: 1471-1485.
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Bayo, E.P. and E.L. Wilson, 1984. Use of Ritz vectors in wave propagation and foundation response. Earthquake Eng. Struct. Dyn., 12: 499-505.
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Safak, E., 1999. Wave-propagation formulation of seismic response of multistory buildings. J. Struct. Eng., 125: 426-437.
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Wilson, E.L. and G. Ghauri, 2000. Three Dimensional Static and Dynamic Analysis of Structures: A Physical Approach with Emphasis on Earthquake Engineering. Computers and Structures, New York, USA., ISBN:9780923907006,.

Wilson, E.L. and T. Itoh, 1983. An eigensolution strategy for large systems. Comput. Structures, 16: 259-265.
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Wilson, E.L., M.W. Yuan and J.M. Dickens, 1982. Dynamic analysis by direct superposition of Ritz vectors. Earthquake Eng. Struct. Dyn., 10: 813-821.
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