1. I. Kay:The inverse scattering problem, Res. Rept EM-74 NYU 1955;L. D. Faddeyev:Tr. Mat. Inst. Steklov.,73, 314 (1964);
2. R. G. Newton:J. Math. Phys. (N. Y.),21, 493 (1980);
3. P. Deift andE. Trubowitz:Commun. Pure Appl. Math.,32, 121 (1979). For reviews see alsoK. Chadan andP. C. Sabatier:Inverse Problems in Quantum Scattering Theory (New York, N. Y., 1977) andD. Atkinson:Marchenko in one dimension, Int. Rept. Inst. for Theoretical Physics, Groningen, Netherlands (1979).
4. I. Kay:Commun. Pure Appl. Math.,13, 371 (1960).
5. M. H. Reilly andA. K. Jordan:IEEE Trans. Antennas Propag., AP-29, 245 (1982);K. R. Pechenik andJ. M. Cohen:J. Math. Phys. (N. Y.),24, 406 (1983);H. E. Moses:Stud. Appl. Math.,60, 177 (1979). See also the references quoted in these papers.