1. Sitenko A. G.,Scattering Theory (Springer-Verlag, Heidelberg) 1991.
2. Newton R. G.,Scattering Theory of Waves and Particles (McGraw-Hill, New York, N.Y.) 1967.
3. Pupyshev V. V. andRakityansky S. A.,Z. Phys. A,348 (1994) 227.
4. Calogero F.,Variable Phase Approach to Potential Scattering (Academic Press, New York, N.Y.) 1967.
5. Mathews J. andWalker R. L.,Mathematical Methods of Physics (W. A. Benjamin, Inc., New York, N.Y.) 1964.