1. L. Jäde, M. Sander and H.V. von Geramb, these conference proceedings
2. K. Chadan and P.C. Sabatier, Inverse Problems in Quantum Scattering Theory, 2nd. Edition, Springer, Berlin (1989)
3. H.V. von Geramb and H. Kohlhoff, in: H.V. von Geramb (ed.), Quantum Inversion Theory and Applications, Lecture Notes in Physics 427, Springer, Berlin (1994)
4. H. Kohlhoff and H.V. von Geramb, ibid. in
5. M. Sander, PhD Thesis, University of Hamburg (1996)