1. A note on the response of an elastic overburden of varying rigidity to an arbitrary ground motion;Ambraseys;Bulletin of the Seismological Society of America,1959
2. Roesset JM, Whitman RV. Theoretical background for amplification studies. Research Report R69-15, Department of Civil Engineering, Massachusetts Institute of Technology; 1969.
3. The influence of ground conditions on ground motions during earthquakes;Seed;Journal of the Soil Mechanics and Foundations Division, ASCE,1969
4. Dobry R, Whitman R, Roesset JM. Soil properties and the one-dimensional theory of earthquake amplification. Research Report R71-18, Department of Civil Engineering, Massachusetts Institute of Technology; 1971.
5. Simplified procedures for estimating the fundamental period of a soil profile;Dobry;Bulletin of the Seismological Society of America,1976