1. Dynamics of Structures;Clough,1975
2. Evolutionary spectra and nonstationary processes;Priestley;J. Roy. Statistical Society,1965
3. Structural Response to Earthquakes;Vanmarcke,1976
4. Simulation of nonstationary random processes;Shinozuka,1967
5. An empirical formula for the spectrum of strong earthquake motions;Kanai,1961