1. WaasGLinear Two‐Dimensional Analysis of Soil Dynamics Problems in Semi‐Infinite Layered Media. Ph.D. Dissertation. University of California;1972.
2. KauselE.Forced vibrations of circular foundations on layered media. Research Report R74‐11 Department of Civil Engineering Massachusetts Institute of Technology Cambridge MA;1974.
3. TassoulasJL.Elements for the numerical analysis of wave motion in layered media. Research Report R81‐2. Department of Civil Engineering Massachusetts Institute of Technolog;1981.
4. Boundary Element Methods in Dynamic Analysis
5. Boundary Element Methods in Dynamic Analysis: Part II (1986-1996)