1. Newton, R.G., 1982, “Scattering Theory of Waves and Particles” 2nd Edition. Springer-Verlag. Heidelberg.
2. Sabatier, P.C., 1974, “Problème direct et inverse de diffraction d’une onde élastique par une zone perturbée sphérique”. C.R. Acad. Sci. Paris, 278 B, 545–547 & 278 B, 603–606.
3. Sabatier, P.C., 1978, “Spectral and Scattering Inverse Problems”, J. Math. Phys. 19, 2410–2425 (1978).
4. Sabatier, P.C., 1987, “Remark on the three-dimensional mixed impedance potential equation”, Inverse Problems 3, L83–L86 + “Corrigendum” Inverse Problems 4, L1 (1988).
5. Sabatier, P.C., 1989, “Three-dimensional impedance scattering theory” in “Electromagnetic and Acoustic Scattering. Detection and Inverse Problem” C. Bourrely, P. Chiapetta & B. Torresani Ed. World Scientific. Singapore.