1. Earthquake Rocking Response of Rigid Bodies
2. The seismic response of a reinforced concrete bridge pier designed to step
3. Earthquakes, A Primer, W. H. Freeman, San Francisco, 1978, pp. 112–115.
4. Earthquake in Romania, March 4,1977, An Engineering Report, National Research Council and Earthquake Engineering Research Institute, National Academy Press, Washington, D.C., 1980, p. 6.
5. ‘A study of the vibrational characteristics of two multistorey buildings’, Report No. EERL 76–03, Earthquake Engineering Research Laboratory, California Institute of Technology, Pasadena, CA, September 1976.