1. Y. M. Chen, “Generalized pulse-spectrum technique (GPST) for solving problems in parameter identification,” Proc. China-US Workshop on Advances in Computational Engineering Mechanics, Dalian, China, Sept. 5-9 (1983).
2. A. N. Tikhonov and V. Arsenin, “Solutions of Ill-Posed Problems,” Wiley, New York (1977).
3. Y. M. Chen and G. Q. Xie, “A numerical method for simultaneous determination of bulk modulus, shear modulus and density variations for nondestructive evaluation,” Nondestructive Testing Communications, (1984).
4. Y. M. Chen and G. Q. Xie, “An iterative method for simultaneous determination of bulk and shear moduli and density variations,” submitted to J. Comp. Phys.
5. D. Colton, “The inverse scattering Problem for time-harmonic acoustic waves,” SIAM Rev., 26:323 (1984).