1. Fundamentals of Geophysical Prospecting;Claerbout,1976
2. Properties of the s-matrix of one dimensional Schrodinger equation;Faddeyev;American Mathematical Society Transcript,1967
3. The Inverse Problem in the Quantum Theory of Scattering
4. The Inverse Problem of Scattering Theory;Agranovich,1963
5. Inverse Scattering Problem;Kay,1955