1. Apsel R. J. “Dynamic Green's Functions for Layered Media and Applications to Boundary‐Value Problems ” dissertation presented to the University of California at San Diego Calif. in 1979 in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
2. Coupled Horizontal and Rocking Vibration of Embedded Footings
3. Chang‐Liang V. “Dynamic Response of Structures in Layered Soils ” thesis presented to the Massachusetts Institute of Technology at Cambridge Mass. in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
4. Chen H.‐T. “Dynamic Stiffness of Nonuniformly Embedded Foundations ” dissertation presented to the University of Texas at Austin Tex. in 1984 in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
5. A direct formulation and numerical solution of the general transient elastodynamic problem. I