1. P. Ring, R. Bauer and J. Speth, Nucl. Phys., to be published.
2. R. Bauer, J. Speth, V. Klemt, P. Ring, E. Werner and T. Yamazaki, Nucl. Phys., to be published.
3. Theory of finite Fermi systems;Migdal,1967
4. Particle-hole excitations in 208Pb
5. Particle-hole excitations with a sum of separable interactions