1. Quantum-mechanical scattering theory for short-range and Coulomb interactions;Dollard;Rocky Mountain J. Math.,1971
2. On finite-dimensional perturbation of self-adjoint operators;Kato;Japan J. Math. Soc.,1957
3. Perturbation of continuous spectra by trace class operators;Kato,1957
4. Perturbation Theory for Linear Operators;Kato,1966
5. Scattering theory with two Hilbert spaces;Kato;J. Functional Analysis,1967