1. 1) Takemiya, H., Masaki, K., Kojima, O. and Ninomiya, A.: Pseudo-3 Dimensional Seismic Analysis of Soil-Structure Interaction Systems, Procs. of the 8th Matrix Analysis Symp. JSSC, pp. 311-316, 1983.
2. 2) Takemiya, H.: Three-Dimensional Seismic Analysis for Soil-Foundation-Superstructure Interaction Based on Dynamic Substructure Method, Procs. of JSCE, Struct. Eng./Earthq. Eng., No. 2-1, pp. 163-173, April, 1985.
3. 3) Wolf, J. P. and von Arx, G. A.: Impedance Function of a Group of Vertical Piles, Proc. ASCE Specialty Conf. on Earthq. Eng. and Soil Dyn., Vol. 2, pp. 1024-1041, 1978.
4. 4) Waas, G. and Hartman, H. G.: Analysis of Pile Foundations Under Dynamic Loads, Trans. of Struc. Mech in Reactor Tech., Paris, K5/2, 1981.
5. 5) Tyson, T. R. and Kausel, E.: Dynamic Analysis of Axisymmetric Pile Groups, MIT Repot No. 751, 1983.